B.E.S. Crystal Core is a Ultimate Rare Effect Monster card from Yu-Gi-Oh! (Cybernetic Revolution, CRV). Current market price: $0.52.
Ultimate Rare
Cybernetic Revolution (CRV)
Card Text
When this card is Normal Summoned, put 3 counters on it. This card cannot be destroyed by battle. If this card attacks or is attacked, remove 1 counter from this card at the end of the Damage Step. If you cannot, destroy it. Once per turn, during your Main Phase, you can change 1 face-up Attack Position monster your opponent controls to face-up Defense Position.
