This is a type of offensive and defensive battle strategy utilized mainly by poisoners.
This is an attack used by Hera while she was battling Execk. To do it, Hera threw three pellets containing poison around Execk to create the pyramid's base. She then threw an open vile of an acidic and deadly potion over Execk whose contents leaked down the sides of the now visible pyramid. The open vile potion must have used some sort of sorcery as Execk could break out of it with her wings with sorcery dis-spelling capabilities.