The Ter' Reroi Destroyer (AKA:Ultra Creeper) form is a metal molding form of the beings called Ter' Reroi. The Destroyer form is one of the largest Ter' Reroi ever encountered, and one of the toughest. They are used by the Covenant as replacements for Scarabs. It is unknown how they become so large, possibly by molding several Ter' Reroi together, but no matter what happened to make these, they are very impressive, with claw deployment pieces to deploy Covenant forces on the ground and a full set of Plasma cannons and Mortars. These take a huge amount of effort to destroy and is a true show of Forerunner Ter' Reroi capabilities, and is one of the Covenant's best ground weapons. Six Destroyer Forms have been encountered, and one only known as D445 was destroyed.