Bosses

This is a list of bosses that are introduced in the Spectra Mod. Any boss monster generally has much stronger attacks than a normal enemy, more defense, and considerably higher HP ranging from 750 to 25,000,000, **1,250 to 40,000,000** in Expert Mode, **2,500 to 56,000,000** in Professional Mode, **4,000 to 65,000,000** in Slayer Mode, and **24,000 to 80,000,000** when the Possessed Heart of Oblivion is activated. After the player has beaten the Moon Lord, a whole new level of progression is unlocked. Beating all of the bosses in Expert, Professional, and Slayer requires alot of determination, and time.

In Expert Mode, Professional Mode, and Slayer Mode, bosses drop Treasure Bags which contain special Expert/Professional/Slayer-exclusive items in addition to their normal drops. However, many bosses also have new and unique attacks providing players with new challenges to surmount if they hope to reap the rewards. The Spectra Mod's new difficulty modes, Revenge Mode, Professional Mode and Slayer Mode, increase the challenge even further, often to levels that require rigorous training and complete knowledge of the boss fights if players hope to receive the valuable mode-exclusive rewards. There are other items that activate certain mini-modes that can put the player to the test, further increasing the reward that the player can take, such as the Possessed Heart of Oblivion is for bragging rights.

Most bosses in Spectra are designed to be much more difficult than those of vanilla Terraria, offering an obvious challenge even to seasoned players, but are not required to progress through the vanilla game's content. To make up for this, they often drop more powerful equipment and open up new tiers of progression. Most Post-Moon Lord bosses have millions of HP.

After the player has killed the Moon Lord, a whole new level of progression is unlocked, containing several very powerful bosses that will push the game's mechanics to the limits. These serve the test the player's skill and game knowledge and allow for additional tiers of weapons and items beyond what Terraria's endgame has to offer.

Unprepared players will find these bosses to be spectacularly difficult, but if precautions are taken and proper preparations are made, all of them can be defeated at their respective level of progression. Players are advised to make use of arenas, potions, and any other kind of aid they can muster before confronting these challenging bosses.

Logically, by consuming the Boss Health Boost Flask, all bosses' HP can be ludicrously increased by millions mostly, making bosses ludicrously severe, and much more challenging than ever.

## **Pre-Hardmode Bosses**

### **The Grave Robber**

**The Grave Robber** is an armored devil and is currently the first boss of Spectra. It is intended to be fought before King Slime. It is currently the weakest boss with the lowest stats available only with 750 , **1,250** in Expert Mode, **2,500** in Professional Mode, **4,000** in Slayer Mode, and **24,000** whilst the Possessed Heart of Oblivion is activated, making it the first boss of both Terraria and Spectra Mod. The Grave Robber walks fast and jumps to the player, attempting to deal melee damage. He is summoned by using the Dark Mask item at night time.

### **Mage Master**

The **Mage Master** is a Pre-Hardmode boss with 3,000 , **3,800** in Expert Mode, **7,980** in Professional Mode, **17,600** in Slayer Mode, and **105,600** whilst the Possessed Heart of Oblivion is active. When summoned, the Mage Master will damage the player with all sorts of attacks, dealing alot of damage. The Mage Master will also teleport much luke the Lunatic Cultist, rendering it to be somewhat difficult for Pre-Hardmode players. It is summoned by using the Ripped Spell item anywhere at anytime.

### **Water Spirit**

The **Water Spirit** is an evil wisp of water with 4,600 , **7,200** in Expert Mode, **9,400** in Professional Mode, **18,800** in Slayer Mode, and **112,800** whilst the Possessed Heart of Oblivion is activated. It is fought in the Ocean biome at anytime. The Water Spirit frequently moves to the player, attempting to deal melee damage, It also shoots projectiles at the player frequently, dealing some damage. This boss is somewhat easy, because of the low stats. It is summoned by using the Water Methane Bait item in the Ocean at anytime.

### **Keeper of Nature**

The **Keeper of Nature** is a green-armored elemental with 4,400 , **8,800** in Expert Mode, **18,200** in Professional Mode, **36,400** in Slayer Mode, and **218,400** whilst the Possessed Heart of Oblivion is activated. The Keeper of Nature is fought after Skeleton. When summoned, The Keeper of Nature summons nature spikes that come out of the ground and deal damage to the player. He also summons his own minions to help him out and The Keeper of Nature shoot projectiles that deal damage to the player. He is summoned by using the Dirt Totem item in The Plains at anytime.

### **Unerable Miner**

The **Unerable Miner**is a Pre-Hardmode boss with 9,800 , **18,400** in Expert Mode, **31,000** in Professional Mode, **62,000** in Slayer Mode, and **372,000** whilst the Possessed Heart of Oblivion is activated. When summoned, the Unerable Miner shoots pickaxes, bombs, and torches at the player frequently, dealing mediocre damage. He also summons some minions to assist it. He is summoned by using the Miner's Pick item in the Underground at anytime.

### **Queen Spider**

The **Queen Spider** is a huge mother spider with 8,000 , **16,000** in Expert Mode, **32,000** in Professional Mode, **64,000** in Slayer Mode, and **384,000** whilst the Possessed Heart of Oblivion is activated. The Queen Spider is fought in either the Underground or Caverns anytime after Skeletron is defeated. Queen Spider serves 3 attacks to hit the player. It also summons some minions. The Queen Spider spits at the player, giving the Poisoned debuff on hit, while the other one inflicts Venom on hit. She also moves pretty fast. She is summoned by using the Spider Feed item in the Underground at anytime.

## **Hardmode Bosses**

### **Clown King**

The **Clown King** is an evil, royal clown with 30,000 , **60,000** in Expert Mode, **100,000** in Professional Mode, **200,000** in Slayer Mode, and **1,200,000** whilst the Possessed Heart of Oblivion is activated. When summoned, The Clown King occasionally chases the player at a fast speed. It also throws bombs that detonate for 5 seconds. The Clown King jumps the the player comes near him, or being hit in contact. It is summoned by using the Clown's Bomb item at night time.

### **Sand Lord**

The **Sand Lord** is a four-armed mother sand elemental with 42,600 , **79,900** in Expert Mode, **111,111** in Professional Mode, **195,600** in Slayer Mode, and **1,173,600** whilst the Possessed Heart of Oblivion is activated. When summoned, The Sand Lord will occasionally fly to the player, attempting to attack the player. She will occasionally stop for every 15 seconds and summon 3 sets of Sandnadoes. The Sand Lord also summons his own minions to assist her. When defeated, The Sand Lord will drop special loot, as well as Forbidden Fragments. She is summoned by using the Sand Abomination item in the Desert at anytime.

### **Mechaspider**

The **Mechaspider** is a huge mechanical spider with 62,000 , **94,000** in Expert Mode, **168,000** in Professional Mode, **330,000** in Slayer Mode, and **1,980,000** whilst the Possessed Heart of Oblivion is activated. The Mechaspider is considered to be the mechanical, harder, and powerful version of the Queen Spider, with more stats. When summoned, the Mechaspider acts much like the normal Queen Spider, giving more attacks, summoning more minions, and other stuff. Like Queen Spider, the contact inflicts Webbed. It is summoned by using the Mechanical Spider item anywhere at anytime.

### **Robotion, The King of All Saucers**

**Robotion, The King of All Saucers** is an evil saucer with 115,000 , **230,000** in Expert Mode, **460,000** in Professional Mode, **912,000** in Slayer Mode, and **5,472,000** whilst the Possessed Heart of Oblivion is activated. When summoned, Robotion will shoot projectiles directly at the player frequently, dealing large amounts of damage. He also summons some minions to assist the boss. He is summoned by using the Terrestrial Cellphone item anywhere on the surface at night time.

### **Mother Hornet**

The **Mother Hornet** is a Hardmode boss with 52,000 , **104,000** in Expert Mode, **232,000** in Professional Mode, **475,000** in Slayer Mode, and **2,850,000** whilst the Possessed Heart of Oblivion is activated. It appears to be a much harder and powerful version of Queen Bee, but faster, and challenging with more stats. It acts much like the said boss, but stronger. She is summoned by using the Baby Stroller item in the Jungle at anytime.

### **Mother Moth**

The **Mother Moth** is a Hardmode boss with 60,000 , **156,000** in Expert Mode, **295,000** in Professional Mode, **600,000** in Slayer Mode, and **3,600,000** whilst the Possessed Heart of Oblivion is activated. When summoned, she flies around and attempts to ram into the player. She will summon some minions to assist her. She will shoot light lasers and occasionally a light death ray that does immense damage. She will also toss moth bombs at explode, dealing damage, and summoning tons of Moths that block projectiles and attacks and clouds the player's vision. She is summoned by using the Baby Stroller item in the Jungle at anytime.

### **Mother Derpling**

The **Mother Derpling** is a Hardmode boss with 70,000 , **245,000** in Expert Mode, **400,000** in Professional Mode, **785,000** in Slayer Mode, and **4,710,000** whilst the Possessed Heart of Oblivion is activated. When summoned, she waddles around and attempts to ram the player. She constantly summons Derplings to assist her. She will scream, creating a shockwave and occasionally stomp the ground, which deals immense damage. She can also shoot spiny blue spikes at the player and cast magic balls of blue flame. She is summoned by using the Baby Stroller item in the Jungle at anytime.

## **Post-Moon Lord Bosses**

### **Doom Slime**

The **Doom Slime** is a giant beastial black slime with 185,908 , **325,070** in Expert Mode, **647,895** in Professional Mode, **1,064,000** in Slayer Mode, and **6,384,000** Possessed Heart of Oblivion is activated. As the name suggests, It is considered to be the Hardmode version of the King Slime, but stronger, and challenging, basically being the Hardmode version of the Wall of Flesh. Doom Slime jumps higher that its original variant. If touched, Doom Slime will frequently shoot dark crystals from its center, dealing high damage. Doom Slime also teleports to the player in a manner similar to King Slime, attempting to attack the player. When defeated, the world irreversibly converts into Revenge Mode, meaning that there will be a new biome similar to the Hallow, blessing the world with new Revenge Mode ores, and unlocking new enemies and bosses. It is summoned by using the Devil Crown item anywhere at anytime.

## **Revenge Mode** **Bosses**

### **Giant Slime Tredectet**

The **Giant Slime Tredectet** are a tredectet slime boss fight, mainly split into all 13 huge slimes altogether, containing the total of 2,600,000 , **5,200,000** in Expert Mode, **7,800,000** in Professional Mode, **13,000,000** in Slayer Mode, and **78000000** whilst the Possessed Heart of Oblivion is active. They all act like King Slime and share the same stats together. They are all summoned by using the Slime Pack item anywhere at anytime.

### **Ethereal Spider**

The **Ethereal Spider** is a ghastly spider with 800,000 , **1,000,000** in Expert Mode, **2,000,000** in Professional Mode, **4,000,000** in Slayer Mode, and **???** whilst the Possessed Heart of Oblivion is active. It appears to be the ghost version of the Queen Spider and Mechaspider respectively. It acts much like the two (2) said bosses, but stronger. It is summoned by using the Ethereal Nest item anywhere at anytime.

### **Solar Wyvern**

The **Solar Wyvern** is a maniacal, fiery dragon with 644,000 , **888,000** in Expert Mode, **1,000,000** in Professional Mode, **2,000,000** in Slayer Mode, and **12,000,000** whilst the Possessed Heart of Oblivion is active. When summoned, The Solar Wyvern shoots fiery projectiles at the player frequently, dealing very high damage. She also summons her own minions to assist her. She is summoned anytime by using the Solar Egg item or by killing at least 30 Wyverns after Moon Lord is defeated.

### **Devil Lord**

The **Devil Lord** is a Revenge Mode boss with 825,000 , **1,000,000** in Expert Mode, **2,000,000** in Professional Mode, **4,100,000** in Slayer Mode, and **24,600,000** whilst the Possessed Heart of Oblivion is active. As the name suggests, It is a devilish boss fought in the Underworld. The Devil Lord summons Red Devils, Oblivion Devils, Armageddon Devils, Superdark Devils, and Devil Guardians. The Devil Lord shoots trident projectiles at the player frequently, dealing large amounts of damage. He also shoots Ultra Souls at the player frequently, dealing huge amounts of damage. He is summoned by using the Ultra Horn item in the Underworld at anytime.

### **Blizzard Elemental**

The **Blizzard Elemental** is a frozen spirit with 1,000,000 , **2,150,009** in Expert Mode, **4,300,018** in Professional Mode, **7,200,000** in Slayer Mode, and **43,200,000** whilst the Possessed Heart of Oblivion is active. It is an ice-based boss fought in the Snow biome. When summoned, it fires all sorts of projectiles at the player frequently, dealing large amounts of damage. It also summons minions to assist the boss. It is summoned by using the Blizzard Fragment item in the Snow biome at anytime.

### **Heaven Wyvern**

The **Heaven Wyvern** is a spiritual dragon with 3,100,000 , **5,200,000** in Expert Mode, **7,400,000** in Professional Mode, **9,800,000** in Slayer Mode, and **58,800,000** whilst the Possessed Heart of Oblivion is active. It appears to be the ghost version of the Solar Wyvern respectively. It acts much like the two (2) said bosses, with stronger stats. It is summoned by using the Heavenly Soul Artifact item at anywhere anytime.

### **Bone Lord**

The **Bone Lord** is a Revenge Mode boss with 5,770,728 , **7,589,000** in Expert Mode, **9,480,000** in Professional Mode, **17,170,000** in Slayer Mode, and **103,020,000** whilst the Possessed Heart of Oblivion is active.

## **Superbosses**

### **Earth God**

The **Earth God** is a godly, gargantuan earthen creature with a total of 6,400,000 , **11,000,000** in Expert Mode, **16,200,000** in Professional Mode, **24,400,000** in Slayer Mode, and **146,400,000** whilst the Possessed Heart of Oblivion is active. When summoned, Earth God acts much like Moon Lord, but stronger, powerful, and more challenging. He will fire Elemental Blasts, which can easily annihilate the player without the best gear. His main attacks are: Elemental Blast, Titan Death Ray, and Latomin Shatter. He is summoned by using the Ancient Totem anywhere at anytime.

### **Slayer God**

The **Slayer God** is a mighty, mechanical devil abomination. Slayer God typically has the third-most  of any superboss in the mod, with 7,200,000 , **9,556,000** in Expert Mode, **15,000,000** in Professional Mode, **25,000,000** in Slayer Mode, and **150,000,000** whilst the Possessed Heart of Oblivion is active, only dwarfed by Arises, The Eldritch Worm. Slayer God is considered to be the second-most difficult superboss in the mod, even for experienced players. As suggested, it is considered to be secondly, notoriously difficult, deadly, and powerful, especially on Expert Mode, Professional Mode, and Slayer Mode. Slayer God is a trio boss fight mainly split into 3 entities. When summoned, Slayer God uses all his attacks, attempting to annihilate the player with ease. These attacks are very murderous and can also easily eradicate any player with ease. These attacks are (somewhat) impossible to dodge, even for the best of players. Slayer God also does the "death spin" that deals powerfully high damage, the death spin's damage amount is more than that of the Dungeon Guardian's contact. The death spin is ludicrously fast, and impossibly powerful. Slayer God also rams the player for every 15 seconds, attempting to mutilate the player in seconds. When defeated, Slayer God drops very special and powerful loot, The weapons that Slayer God drops are very powerful, and sell for alot of money. The two messages also appear in the chat, meaning that Slayersteel is generated in a world, and the other means that the Martian Madness is severely buffed, having Martian Saucers have 25x the . He is summoned by using the Skull of Slayer anywhere at night time.

### **The Slayer God's Ghost**

**The Slayer God's Ghost** is a spectral devilish spirit and is one of the Ghastly Bosses. It is the penultimate boss of Revenge Mode, preferably known as the penultimate boss of Spectra Mod. It has the second-most health of any superboss in the mod, with 8,999,999 , **9,999,999** in Expert Mode, **17,200,000** in Professional Mode, **33,000,000** in Slayer Mode, and **198,000,000** whilst the Possessed Heart of Oblivion is active. It appears to be the ghost version of Slayer God. It acts much like the said superboss, with way stronger stats. The "death spin" now instakills the player on contact. It is summoned by using the Devilish Spirit Abomination item at anywhere anytime.

### **Arises, The Eldritch Worm**

**Arises, The Eldritch Worm** is a destructive scourge and is the final boss of Revenge Mode, as spoken, it is ***the final boss of the mod***. Arises, The Eldritch Worm has the most  of any superboss in the mod, with 25,000,000 , **40,000,000** in Expert Mode, **56,000,000** in Professional Mode, **65,000,000** in Slayer Mode, and **80,000,000** whilst the Possessed Heart of Oblivion is active. Arises is the most challenging boss in the entire mod, especially on Expert Mode, Professional Mode, and Slayer Mode. When summoned, Arises creates an arena made out of unbreakable tiles. It is very fast, ludicrous, rough, and although formidable. It is summoned by using the Worm God Idol anywhere at night time.

## See Also

* Enemy List
* Superbosses
* Boss Progression List
* Boss Summoning Items