HP 155, void healing; Immunities bleed, death effects, disease, paralyzed, poison, unconscious
Attack of Opportunity
Trigger A creature within the monster's reach uses a manipulate action or a move action, makes a ranged attack, or leaves a square during a move action it's using.
Effect The monster attempts a melee Strike against the triggering creature. If the attack is a critical hit and the trigger was a manipulate action, the monster disrupts that action. This Strike doesn't count toward the monster's multiple attack penalty, and its multiple attack penalty doesn't apply to this Strike.
Stench(aura, olfactory)
10 feet. A creature entering the aura or starting its turn in the aura must succeed at a DC 26 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.
Effect: Stench
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.
Speed 30 feet, burrow 5 feet
Melee Jaws +21 (finesse, unarmed), Damage 2d8+8 piercing plus Ghast Ghast Fever plus Ghast Paralysis
Requirements The ghast is adjacent to the corpse of a creature that died within the last hour.
Effect The ghast devours a chunk of the corpse and regains 6d6 healing Hit Points
It can regain Hit Points from any given corpse only once.
Ghast Fever(disease)
Saving Throw DC 26 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 26 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.
Sneak Attack
The ghast's Strikes deal an additional 2d6 precision damage to Off-Guard creatures.
Swift Leap
The ghast jumps up to half its Speed. This movement doesn't trigger reactions.