◿ ⊣⊢ ⨀ ϟ ‡/Tactics

== Boss Attacks ==
=== Standard Attacks ===
* Fires solid streams of wavy projectiles in every direction. At the end of the attack, fires two slower rings of shots.
*Fires large spinning circles of bullets in all directions.
*Fires two sweeping streams of decelerating shots to its sides. 
*Fires a large storm of homing arrowheads that explode into aimed spreads of bullets when they get close to a player
*Remains stationary and plants Tentacles of the Past into the ground, which will appear in random locations.
=== Special Attack ===
* Only used when enraged, and not in Little Commander mode.
* Tears a large rift into the ground and sticks a large tentacle into it as it charges up, firing several rings of projectiles in the process.
** Until the attack ends, it does not take damage or move, and instead heals 1 per hit.
** A red timer appears above the player. After 10 seconds, the boss triggers a full screen flash and launches an undodgeable attack dealing 5 (6 in Badass Mode) damage.
** When the attack is done (whether the player dodges the attack or not), the room is clogged with water bogs for 10 seconds.
* In random locations in the room, two to three runes and a golden silhouette will spawn. The silhouette is the same as the player character, but may sometimes be resized. If the character fits in the silhouette, a golden barrier appears and protects the character from taking the flash damage.
** If the character size does not fit, some of the runes will glow, indicating that the player should pick up the glowing runes to rune to adjust the size of the player. Once the character is at the correct size, the silhouette will glow, indicating that it is time to hide.
*** If the character picks up a wrong rune (that does not glow), it is required to pick up all remaining runes to adjust to the correct size.
** This barrier does not protect the player from other damage sources.
== Tactics ==
Because the room has no cover, ◿ ⊣⊢ ⨀ ϟ ‡ can be a tough foe. It has bullet storms, dangerous AOE strikes, and annoying minions.
The attack patterns mean that unless with adequate protection to tank all the projectiles or if the weapon is able to disable the boss for extended periods, melee strategies are ineffective. A melee weapon is still useful for destroying the projectiles from a distance, and can function in conjunction with the Reflect Buff (but can be bad for the full-screen attack). As for ranged weapons they are less affected and can be used to the player's desire. The aim is to demolish it at speed or otherwise it can be impossible to win.
For the full-screen attack, although it is possible to negate or reduce its damage, it is still advised to watch the field carefully and always move to the glowing target at worst case. The resulting water bog isn't dangerous on its own and it despawns after several seconds, but can be threatening if other threats close in. The more dangerous portion of this attack are the bullet rings, as the barrier only protects the player from the full-screen attack, therefore, timing is necessary in order to dodge the rings and return to the barrier, alternatively, a long-lasting invincibility skill or bullet blocking weapon could do the trick. Lastly, players who have the Melee Reflect Buff should be careful, thank to the boss' healing factor.
The Tentacles are less dangerous, as they have short-ranged melee attacks, and unless the player is slowed down it is easy to defeat them from range or overwhelm them with melee attacks. The poison pool spawned when they are defeated, however, are extremely annoying as they are tough to avoid in general. It's recommended to destroy every tentacle as soon as possible, allowing their impact to be trivialized. Alternatively, having the Poison Buff can allow them to ignore the pools.
This boss suffers a huge disadvantage in Little Commander, as its special attack is unusable due to multiple AI-controlled characters, removing one of the most threatening parts of the battle: the bullet rings with the healing factor countering the Reflect Buff.
== Trivia ==
* The red timer is a reused sprite from Engineer's HELLO WORLD skin.
** The leech attack may be a reference of sanity value system in the Cthulhu franchise.
* In Update 3.1.0, Lord of Infinite Dark's attacks got buffed:
** It summons tentacles more often,
** During its Leech Attack it will fire multiple rings of bullets outward.
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Category:Swamp
Category:Enemies
Category:Bosses
Category:Strategies and Guides