Arrester Messiah

(Active if you have one or more face up G units in total on your or G zone):When this unit attacks, if you have a vanguard with "Messiah" in its card name, this unit gets +5000 until end of that battle, and at the end of that battle, lock this unit. (Locked cards cannot do anything. They are unlocked and turned face up as at the end of their owner's turn)