Evilswarm Thunderbird [HA07-EN051] Secret Rare Cyberdark Impact You can only use this

You can only use this effect of "Superheavy Samurai Soulclaw" once per turn

and you have no Spell/Trap Cards in your Graveyard: You can send this card from your hand to the Graveyard

except "Shadow Vampire"

during either player's turn: You can detach 1 Xyz Material from this card to target 1 face-up "Six Samurai" monster you control with less than 2000 ATK

but those monsters cannot attack this turn

Evilswarm Thunderbird [HA07-EN051] Secret Rare Cyberdark Impact You can only use thisSet: Hidden Arsenal 7: Knight of Stars Card type: Effect Monster Rarity: Secret Rare Attack: 1650 Defense: 1050 During either player's turn, when a card or effect is activated (except during the Damage Step): You can banish this card you control. During the next Standby Phase, return this card banished by this effect to the field, and if you do, it gains 300 ATK. You can only use the effect of "Evilswarm Thunderbird" once per turn.