B.E.S. Crystal Core (UTR) [CRV-EN021] Ultimate Rare Trainer You can only use this

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

that player gains 200 Life Points

This card can only be Special Summoned from your hand if a Normal Monster you control is destroyed by battle

If this card battles a monster

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

B.E.S. Crystal Core (UTR) [CRV-EN021] Ultimate Rare Trainer You can only use thisSet: 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