Roaring Earth (5D's Duel Transer) #YDT1-EN003

TRAPTrap

During battle between an attacking Beast-Type monster you control and a Defense Position monster whose DEF is lower than the ATK of that monster, inflict the difference as Battle Damage to your opponent. If your opponent takes Battle Damage this way, select 1 face-up monster they control. It loses 500 ATK and DEF.