Hecatoncheire Tartaros
Quick-Play Spell

(1) Activate 1 of these effects (but you can only use each effect of cards with this card's name once per turn);
*If you control a "Hecatoncheire" monster: Target 1 Spell/Trap your opponent controls; return it to the hand.
*Fusion Summon 1 "Hecatoncheire" monster by banishing its materials from your field and/or GY. (If you would use a face-up monster you control that is owned by your opponent, you can treat it as a "Hecatoncheire" monster.)