Grave Clobber is one of the trappable villains in the game, Skylanders: Trap Team. A Earth element trap is required to trap him.
Grave Clobber appears in the Golden Desert, which in Arena Battle's stage 3 Golden Queen called upon him to destroy the Skylanders. Grave Clobber is some kind of undead mummy and its foots, hands and head are rock.
However the Skylanders defeat Grave Clobber, lock him in a Earth element trap and saved Cali, but Golden Queen escape his own lair.
Grave Clobber is a mighty warrior and everyone is very aware of this including his master the Golden Queen.