Amorphous. The Acidic Slime can move through a space as narrow as 1 inch without expending extra movement to do so.

Corrosive Form. Any non-magical weapon made of metal or wood that hits the Acidic Slime corrodes. After dealing damage, the weapon takes a permanent and cumulative -1 penalty to damage rolls. If its penalty drops to -5, the weapon is destroyed. Non-magical ammunition made of metal or wood that hits the Acidic Slime is destroyed after dealing damage.

Pseudopod. Melee weapon attack: +4 to hit, reach 5 ft, one creature. Hit: 10 (3d6) acid damage.

Splitting (2 uses). After an attack has brought Acidic Slime below half its maximum hit points,it will use its reaction to split in two. Each new Acidic Slime has hit points equal to the hit points the Acidic Slime had when it used this reaction. New Acidic Slimes are
one size smaller than the original one.