Grand-arm Robo, Earthdigger

:This cost can be paid with " 2 & an Arena from your order zone". When this unit is placed on other than during the battle phase, if you have a vanguard with "Rotovisor" in its card name, 1, choose a non-sentinel Battleroid with a different card name from this unit and grade less than or equal to your vanguard from your drop, and call it to . (Back Row RC):When your unit in the same column as this unit attacks, if you have a grade 3 or greater vanguard, and an Arena in your order zone was this battle, the attacking unit gets +5000 until end of turn.