Keeper of the Night

The Keeper of the Night is a hard war mode boss summoned when the full eclipse event is about to end. When it is summoned, a message will display saying:

"You feel the darkness manifesting..."

While the boss is active, the time stops, but monsters can still move. It looks like a big reaper with a slightly tilted scythe. Defeating it ends the full eclipse and displays the message:

"The spirits of light have been released..."

It has 2 phases. During the fight, the player is inflicted with the Reaper's Presence debuff.

Phase 1
The Keeper has 125,560 and 60 defense. It attempts to stay relatively far from the player, attacking by swinging its scythe and summoning shadow scythes that home in on the player and inflict blackout. The scythes dissipiate upon travelling 50 blocks. Upon swinging 20 times, the keeper teleports near the player and within an arena of Death Wards and then begins to charge the player while swinging its scythe for 20 seconds, then it teleports away and repeats the pattern.

Phase 2
In this phase, the keeper has 62,780 and 50 defense. When transforming, it stays stationary like duke fishron, then it gets a little bigger and its eyes become bright red. The keeper becomes a lot more aggressive in this phase. It usually tries to ram the player while swinging its scythe for 30 seconds. While doing this, it has a 20% chance to deflect an attack. Then, it stays stationary and shoots out 10 demon scythes that home in on the player and travel 85 blocks before dissipating. Then it will teleport near you and attempt to hit you while giving you blackout. It teleports every 3 seconds for 10 times. After that, it teleports near one of your NPCs and kills it to heal 2,500 and summon a Spirit of the Night, and repeat this pattern till it dies.

Drops

 * Keeper of the Night Trophy (10%)
 * Keeper of the Night Mask (14.29%)
 * One of these will drop:
 * The Reaper(10%)
 * The Nightbringer (10%)
 * Deep Sleep (10%)
 * Deep Sleep (10%)