Sisters of Purity

The **Sisters of Purity** are a duo of bosses that can be fought after Supreme Calamitas and Providence, the Profaned Goddess has been defeated but are intended to be fought after Perfect Dragonson, Yharonfolly. The boss consists of two enemies named **Blackflame, the unholy goddess** and **Shineflame, the holy goddess**. Both bosses can be summoned seperatily or at once, spawning them at once gives unique drops and interactions afterwards.

## Spawn

Both, **Blackflame** and **Shineflame** wont spawn on their own and must be summoned with the Twin Blaze in either The Hallow or The Underworld. Which boss spawns depends on the current daytime, if the item is used at day, **Shineflame** will spawn, if its used at night, **Blackflame** will spawn. If the player uses the item during a Solar Eclipse, both bosses will spawn as a duo bossfight.

## Behavior

Like Providence, **Blackflame** and **Shineflame** deal no contact damage and they will use a lot of projectiles instead. Their behavior changes depending on the phase their currently in. Both will switch phases randomly and stay in one phase for a random amount of time (Both bosses are more likely to switch phases as their health decreases)

Unlike Providence both bosses wont become immune to damage if the player leaves the The Hallow or The Underworld for 5 seconds, instead they will start to rapidly fire projectiles until the player returns to said biomes.

### Blackflame

#### In all Phases

* Blackflame's attacks get more aggressive as her health gets lower.
* If the player gets too far away from her they will be inflicted with the Soulburn debuff, which will cause damage over time aswell as reducing the players defense and damage reduction by 50%.
* When Blackflame reaches 75% health she will summon a Dark Crystal above the players head, this crystal will rain down 10 smaller crystals with a dusty damaging aura around them.
	+ The crystal disappears after exactly 60 seconds and will reappear after 30.
* When Blackflame reaches 40% health she gains the ability to enter the Shadow Ray Phase
* When Blackflame reaches 15% health she will use her Shadow Ray Phase more frequently and the Dark Crystal will appear for the rest of the fight.

#### Blast Phase

* Blackflame will fly back and forth above the player and fire some giant Shadow Blasts which will erupt into Unholy Flames on impact which fly away with high velocity

#### Eruption Phase

* Several black fire pillars will erupt from below the player
	+ During this phase, Blackflame will also shoot barrages of Unholy Flames.

#### Flame Phase

* Blackflame flies directly above the player and rains down a lot of Unholy Flames which split and fly away in random directions.

#### Cocoon Phase

* Blackflame hides in her cocoon, increasing her DR to 90%, and reducing the distance needed to trigger the **Soulburn** debuff.
* While shes hiding, she can do one of 2 attacks
	+ She emits waves of damaging Cocoon Stars which reduce the player's health by 150 / **200** / **230** / **280** health on contact. This is treated as negative healing, which means that it is unaffected by defense, damage reduction, or immunity frames.
* She fires barrages of Unholy Spears from herself in a pattern for 2 seconds, then the spears begin to fire from below the player for 2 seconds and home in slightly.
* After the Cocoon Phase ends, a status message stating "The air is burning..." appears in the chat and the **Icarus' Folly** debuff is applied to all players near the boss for 50 seconds. Icarus' Folly cripples mobility by decreasing wing flight time by 75%, decreasing the player's horizontal speed, and blocking infinite flight. It can be avoided if the player is submerged in Water or Honey.

#### Shadow Ray Phase

* Occurs when Blackflame drops below 40% health.
* Blackflame's DR is increased to 90%.
* Blackflame's movement speed will slow and she'll begin to charge up energy, then, shortly after, she fires a continuous Shadow Ray near the player. The ray sweeps across the area in an arc and deals massive damage upon contact with the player. She will emedietly fire another Shadow Beam from the other direction after the first one ended.

### In Expert Mode

* Blackflame moves slightly faster and attacks at a higher rate.
* The Dark Phase will now occur. Blackflame will stay above the players head for a couple seconds and cover the ground in Shadow Flares which will stay there for 10 seconds, they deal damage when the player touches them, the screen will become slightly darker during this phase.

### In Revengeance Mode

* Blackflame's Shado Ray now explodes into Shadow Blasts.
* Blackflame continuously increases in speed when flying in the same direction for longer than 2.5 seconds, up to a maximum of roughly doubled speed, making running and kiting strategies more difficult.
	+ She returns to normal speed upon changing direction.

### In Death Mode

* Attacks get more random as her health decreases.
* The crystal will disappears after 35 seconds instead of 60.

### Shineflame

#### In all Phases

* Shineflame's attacks get more aggressive as her health gets lower.
* If the player gets too far away from her they will be inflicted with the Sacred Curse debuff, which will cause damage over time aswell as reducing the players dmg output by 20% and disable life regen.
* When Shineflame reaches 75% health she will summon a Sacred Crystal above the players head, this crystal will fire 10 smaller crystals which home in on the player.
	+ The crystal disappears after exactly 60 seconds and will reappear after 30.
* When Blackflame reaches 40% health she gains the ability to enter the Sacred Ray Phase
* When Blackflame reaches 15% health she will use her Sacred Ray Phase more frequently and the Sacred Crystal will appear for the rest of the fight.

#### Blast Phase

* Shineflame will fly back and forth above the player and fire some giant Shining Blasts which will erupt into Sacred Flames on impact which home in on the player.

#### Judgement Phase

* Shineflame will increase her DR up to 90% and stop moving, she will now summon a shower of Giant Sacred Stars which will rain down everywhere around the player. Sacred Stars explode and emit Sacred Flames on impact.

#### Flame Phase

* Shineflame flies directly above the player and rains down a lot of Sacred Flames which split and and home in on the player.

#### Cocoon Phase

* Shineflame hides in her cocoon, increasing her DR to 90%, and reducing the distance needed to trigger the **Sacred Curse** debuff.
* While shes hiding, she can do one of 2 attacks
	+ She emits waves of damaging Cocoon Stars which reduce the player's health by 150 / **200** / **230** / **280** health on contact. This is treated as negative healing, which means that it is unaffected by defense, damage reduction, or immunity frames.
* She fires barrages of Sacred Spears from herself in a pattern for 2 seconds, then the spears begin to fire from the sky the player for 2 seconds and release Sacred Flames.
* After the Cocoon Phase ends, a status message stating "The air is burning..." appears in the chat and the **Icarus' Folly** debuff is applied to all players near the boss for 50 seconds. Icarus' Folly cripples mobility by decreasing wing flight time by 75%, decreasing the player's horizontal speed, and blocking infinite flight. It can be avoided if the player is submerged in Water or Honey.

#### Sacred Ray Phase

* Occurs when Shineflame drops below 40% health.
* Shineflame's DR is increased to 90%.
* Shineflame's movement speed will slow and she'll begin to charge up energy, then, shortly after, she fires a continuous Sacred Ray near the player. The ray sweeps across the area in an arc and deals massive damage upon contact with the player. She will emedietly fire another Sacred Beam from the other direction after the first one ended.

### In Expert Mode

* Shineflame moves slightly faster and attacks at a higher rate.
* The Blazing Phase will now occur. Shineflame will stay above the players head for a couple seconds and summon two Light pillars on the left and on the right side of her, the area above her will be filled with light which, both pillars and light area serve as a closed arena for 20 seconds.

### In Revengeance

* Shineflame's Shado Ray now explodes into Shadow Blasts.
* Shineflame continuously increases in speed when flying in the same direction for longer than 2.5 seconds, up to a maximum of roughly doubled speed, making running and kiting strategies more difficult.
	+ She returns to normal speed upon changing direction.

### In Death Mode

* Attacks get more random as her health decreases.
* The crystal will disappears after 35 seconds instead of 60.

### Duo Fight

#### All Phases

* The Sisters attacks get more aggressive as their health gets lower.
* If both sisters are alive they will fire less aggressive.
* When one sister reaches 50% health while the other one has more health, she will enter her cocoon phase and becomes invulnurable until the other sister reaches 50% health. (This Cocoon Phase is modified and shoots less aggressive)
	+ This happens again at 15% health.
* The distance to trigger the Soulburn and Sacred Curse debuffs is greatly increased to make it more fair when both sisters fly away from eachother.
* When one sister dies the other one becomes enraged and her attacks get even more aggressive.

#### Eclipse Phase

* Occurs when both sisters are at 50% health and also when both sisters are at 15% health.
* Both sisters become invulnurable until the phase ends.
* Blackflame will stop moving and Shineflame will start to emit a high amount of high velocity Sacred Flames while also emiting bright flashes continuously, she will now start to circle Blackflame and chase the player. The Sacred Flames only get blocked by Blackflames hitbox so the player should hide behind her to prevent getting hit by Sacred Flames.
* Eclipse Phase ends after 15 seconds.

## Trivia

* The theme that plays during Blackflame's fight is Devoured by Shadows which is supposed to be a remix of Unholy Insurgency.
* The theme that plays during Shineflame's fight is Blessed by Heavens which is supposed to be a remix of Unholy Insurgency.
* The theme that plays during the sisters fight is A dance of Yin and Yan which is a mixed version of both sisters theme.
* Providence's lore states that she was born when dark and light magic clashed together, Blackflame and Shineflame resemble the dark and the light part of her power.

## Lore

After the Terrarian defeated Providence, the Profaned Goddess her crystal bursted and released her power, unfortunately her dark and light powers got split into two individual deities, Blackflame and Shineflame were born, both were still bound but could act seperatily, while the unholy Blackflame resides in the Underworld her sister Shineflame roams the Hallow. Their goal is still the same, to burn this world to ash and free it from all sins. Both sisters are immortal until both die at the same spot which will result in the termination of both forces. "When the sun falls to the darkness and the ring of light rises, the sisters of purity will ascend and unleash a flame, a blazing flame of light and darkness will burn this pointless world to ash.