Yulthruk

Consume Arcana —

Stench (aura, olfactory) — 10 feet. A creature entering the aura or starting its turn in the aura must succeed at a DC 28 Fortitude save or become Sickened 1 (plus Slowed 1 as long as it's sickened on a critical failure).

While within the aura, the creature takes a -2 circumstance penalty to saves against disease and to recover from the sickened condition. A creature that succeeds at its save is temporarily immune for 1 minute.

Void Healing — A creature with void healing draws health from void energy rather than vitality energy. It is damaged by vitality damage and is not healed by vitality healing effects. It does not take void damage, and it is healed by void effects that heal undead.

Consume Flesh (manipulate) — It can regain Hit Points from any given corpse only once.

Drain Wand — Frequency once per day

Requirements Yulthruk hasn't acted yet on his turn

Effect On his turn Yulthruk can Cast a Spell he's prepared and already cast this day without spending a spell slot. Yulthruk must still meet the spell's other requirements.

Ghast Fever (disease) — Saving Throw DC 28 Fortitude

Stage 1 carrier with no ill effect (1 day)

Stage 2 3d8 void damage and regains half as many Hit Points from all healing (1 day)

Stage 3 as stage 2 (1 day)

Stage 4 3d8 void damage and gains no benefit from healing (1 day)

Stage 5 as stage 4 (1 day)

Stage 6 dead, and rises as a Ghast the next midnight

Paralysis (incapacitation, occult) — Any living creature hit by a ghast's attack must succeed at a DC 28 Fortitude save or become Paralyzed. It can attempt a new save at the end of each of its turns, and the DC cumulatively decreases by 1 on each such save.

Swift Leap — Yulthruk jumps up to half his Speed. This movement doesn't trigger reactions.