Acid Gate
Quick summary & table hints
Any creature that tries to move through the gate, other than those selected by you when the spell was cast, takes 10d6 acid damage and is teleported 1d100 × 10 feet in a random, horizontal direction. If the creature makes a successful Intelligence saving throw, it can’t be teleported by this portal, but it still takes acid damage when it enters the acid-filled portal and every time it ends its turn in contact with it.