B.E.S. Crystal Core (UTR) [CRV-EN021] Ultimate Rare Trainer When this card declares an

When this card declares an attack

Set: Shadows in Valhalla Card type: Field Spell Rarity: Super Rare When this card is activated: You can add 1 "Aleister the Invoker" from your Deck to your hand

You can only use this effect of “Ride of the Valkyries” once per turn

and destroy it

If this card battles a monster

B.E.S. Crystal Core (UTR) [CRV-EN021] Ultimate Rare Trainer When this card declares anSet: Cybernetic Revolution Card type: Effect Monster Rarity: Ultimate Rare Attack: 2100 Defense: 1000 Put 3 counters on this card when you Normal Summon it. This card is not destroyed as a result of battle. If this card battles a monster, remove 1 counter from this card at the end of the Damage Step. If this card battles without a counter, destroy this card at the end of the Damage Step. Once per turn, during your Main Phase, you can change 1 face up