Evilswarm Ouroboros [HA07-EN065] Secret Rare WTR063-C they can't play attack action

they can't play attack action cards with 3 or less base [Power] during their next action phase

You can only use each of these effects of "Nekroz of Valkyrus" once per turn

(This Special Summon is treated as a Fusion Summon

Set: Champion Pack 8 Card type: Effect Monster Rarity: Super Rare Attack: 1000 Defense: 1000 Once per turn

also send 1 "Elemental HERO" monster from your Deck to the Graveyard

Evilswarm Ouroboros [HA07-EN065] Secret Rare WTR063-C they can't play attack actionSet: Hidden Arsenal 7: Knight of Stars Card type: Xyz Effect Monster Rarity: Secret Rare Attack: 2750 Defense: 1950 3 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card to activate 1 of these effects. Each effect can only be used once while this card is face up on the field. Target 1 card your opponent controls; return that target to the hand. Send 1 random card from your opponent's hand to the Graveyard. Target 1 card in