D&D Encounter - Gelatinous Cube Assault Vehicles
"Here they come." The sound was like a pot of stew the size of a lake boiling over. Ten gelatinous cubes crested the hill and began sliding down towards the castle wall. Volleys of arrows sink slowly through the oozes... past dark forms inside. Suddenly four black Wyrmlings dive out the side flying up the walls with ease and plucking archers from their posts. The idea here is to put enemies who are immune to acid , inside gelatinous cubes. You could do this with merfolk inside of water elementals similarly as well. OOoooooooh I gotta go write that.