Mist Valley Thunderbird [HA01-EN004] Secret Rare BT7-035 he/she cannot declare an attack

he/she cannot declare an attack

or Effect Monster's effect and destroy all cards your opponent controls

Set: 2012 Collectors Tin Card type: Xyz/Effect Monster Rarity: Super Rare Attack: 1800 Defense: 1600 2 Level 3 monsters // Once per turn: You can detach 1 Xyz Material from this card to target 1 banished Level 4 or lower monster

When this card destroys an opponent's monster by battle: You can Special Summon 1 "Supreme King Dragon" monster from your Deck or Extra Deck

then destroy 1 face-up monster your opponent controls with ATK less than or equal to the target's ATK

Mist Valley Thunderbird [HA01-EN004] Secret Rare BT7-035 he/she cannot declare an attackSet: Hidden Arsenal Card type: Effect Monster Rarity: Secret Rare Attack: 1100 Defense: 700 When this face up card on the field returns to the hand, Special Summon it. This card cannot attack duting the turn it was Special Summoned by this effect.