From Para, the swarm colony, nightmare colony, sword wielding host, and the furious lasher are immune to stun.
In belladonna’s garden, belladonna is immune to stun.
In the nest, the enraged yellow killer bee, and the enraged blue killer bee are immune to stun.
None of the enemies in oryx’s chamber are immune to stun, but the oryx chicken in April fools is immune to stun.
In the Halloween cem, the pumpkin master, cursed blast, huntress trap, trickster pumpkin, and pumpkin of pain are immune to stun.
Big one. In the lost halls, the marble defender, marble colossus, agonized Titan, crusade shipwright, crusade soldier, crusade explorer, oryx swordsman, oryx Armorbearer, oryx admiral, grotto rat, grotto bat, grotto slime, golem of fear, golem of anger, golem of sorrow (basically all 4 groups except the “leaders”), malus second form, molek, balaam, and the void entity.
They have some of the enemies for the shatters. They are missing the Paladin obelisk, magi generator, and the fire bombs.
None the enemies in clands, Davy’s, tomb, ice tomb, abbys, battle for the nexus, wine cellar, cdepths, and cem are immune to stun
That’s all I found for now, I’ll find more later. Also yes, I have no life.