Corruptor (5e Creature)
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Large undead, chaotic evil
Undead Fortitude. If damage reduces the corruptor to 0 hit points, it must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, it drops to 1 hit point instead.
Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) piercing damage, and the target must make a DC 12 Constitution saving throw, taking 10 (1d20) poison damage on a failed save, or half as much damage on a successful one.
Spit. Ranged Weapon Attack: +6 to hit, range 40/80 ft., one creature or two creatures that are within 5 feet of each other. Hit: 16 (3d10) acid damage, and the target must make a successful DC 12 Constitution saving throw or be poisoned for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Like a cancer, the putrid creatures born from the eater of worlds mutate and grow into bigger, more deadly forms. A corruptor is a eater of souls which has grown to abnormally large proportions. They have multiple additional sets of serrated mandibles surrounding a mouth which discharges acid.
Undead Nature. A corruptor doesn't require air, food, drink, or sleep.