Neomorph (5e Creature)
From D&D Wiki
Medium aberration, neutral evil
Saving Throws Dex +8, Con +6
Spider Climb. The neomorph can climb difficult surfaces, without the need to make an ability check.
Acidic Blood. Any nonmagical weapon made of metal or wood that hits the neomorph corrodes. After dealing damage, the weapon gains a permanent and cumulative -1 penalty to damage rolls. If it drops to -5 the weapons is destroyed.
Multiattack. Makes two claw attacks, or a claw then tail attack.
Claw. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 9 (1d8 + 6) Slashing damage.
Tail. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 12 (1d10 + 6) Piercing damage.
Bite. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 20 (2d10 + 6) Piercing damage.