Skill Drain [TU08-EN001] Ultra Rare HER043 you can also Xyz Summon

you can also Xyz Summon this card by using a Rank 3 or lower Xyz Monster you control as the Xyz Material

You can only activate 1 "Spellbook of Power" per turn

Requires 3 Tributes to Normal Summon (cannot be Normal Set)

then transform up to 2 ash you control into Aether Ashwings

"Kazejin" and "Sizijin"

Skill Drain [TU08-EN001] Ultra Rare HER043 you can also Xyz SummonSet: Turbo Pack: Booster Eight Card type: Continuous Trap Rarity: Ultra Rare Activate by paying 1000 Life Points. The effects of all face up monsters on the field are negated while those monsters are face up on the field (but their effects can still be activated).