Four Guardians

The Four Guardians are one of two Haven bosses. The Four Guardians are a quadruple boss fight, where each of the guardians is on the map at the same time.

Spawning
The Four Guardians can be spawned by using redstone to connect the four levers on each wall of the arena to the Guardian Altar at the top of the Guardian Tower, switching the levers on and then using a Voliant Heart on the altar.

Spawning the Four Guardians will destroy the redstone connected to the altar.

Behavior
Each coloured guardian is a ranged attacker that fires projectiles at the player and has slightly different behaviour:

Red Guardian
The Red Guardian's projectiles will inflict Slowness III for 2 seconds on hit

Blue Guardian
The Blue Guardian's projectiles will inflict Blindness III for 2 seconds on hit

Green Guardian
The Green Guardian's projectiles will explode on impact with the player or a block.

Yellow Guardian
The Yellow Guardian's projectiles deal less base damage than the other guardians, but it has the fastest fire rate.

Drops
Each of the four guardians have a slightly different drop table. Only one table is used, which is the table of the guardian that is killed last.

Related Advancements
四大监护者