Kraab
Kraab closes in for melee attacks and fires bolts at range.
80 health · 12 attack damage
Drop: Kraab Claw (1 to 2)
Find or summon: The first watch bind schedules Kraab 2 to 5 game minutes later, at a valid spot 16 to 32 blocks away.
Bosses
Kraab hunts the watch, Vilgax answers a beacon, and Zs'Skayr waits in the Null Void.
The composite illustration shows the Null Void encounter cast.
Vilgax
Vilgax uses melee attacks and a ground slam. At half health he enters phase two, gains speed and resistance, and calls in drones.
400 health · 18 attack damage
Drop: Vilgax Core
Find or summon: Craft the Vilgax Beacon in the Omnitrix Crafter. Use it on top of a solid block in the Overworld.
Vilgax Drone
Drones fly after the player, dash toward nearby targets, and attack at close range.
16 health · 3 attack damage
Drop: No drops listed in the entity loot table.
Find or summon: Vilgax calls drones during phase two.
Zs'Skayr
Zs'Skayr fires shadow bolts, summons Null Void Prisoners, and turns invisible briefly as he blinks.
500 health · 12 attack damage
Drop: Master Control
Find or summon: Search the Null Void fortress. The fortress feature has a 1-in-400-chunks rarity filter.
Null Guardian
A neutral flyer uses a tractor beam to pull an attacker close, then strikes with its tentacles.
60 health · 8 attack damage
Drop: Null Guardian Membrane (1 to 2)
Find or summon: Rare natural spawn in the Null Void. It stays neutral until it or a nearby guardian is attacked.
Lepidopterran Scout
Fast scouts dive at targets and spit slime that slows them.
20 health · 4 attack damage
Drop: Slime Ball (0 to 2), Taydenite
Find or summon: Spawns in small groups among the Null Void islands.
Prison Warden
The persistent prison boss swings a shock baton, slows its target, and summons prisoner reinforcements.
150 health · 10 attack damage
Drop: Cell Key, Prisoner Cuffs (0 to 1)
Find or summon: One persistent warden guards each floating prison block; it always drops a Cell Key.
Vilgax Beacon
The Beacon recipe uses a Kraab Claw, Black Diamond, Infinitum and a Redstone Block. View the recipe. The summon starts after a short beacon animation. Vilgax's loot table lists a Vilgax Core, used with Infinitum to craft the Null Void Projector.
Vilgax Drones have 16 health and 3 attack damage. The Vilgax entity removes its own drones when it dies.