كاسف، سيد تنانين الكوارث

2 Level 7 Dragon monsters
If this card is Xyz Summoned: You can target 1 Level 4 or lower "Dragon Ruler" monster in your GY or banishment; Special Summon 1 Level/Rank 7 "Dragon Ruler" monster mentioned on it from your Deck or banishment, then shuffle that target into the Deck. When your opponent activates a Spell/Trap Card or effect (Quick Effect): You can detach 2 materials from this card; negate the activation, and if you do, banish that card. You can only use each effect of "Eclepsis, Dragon Ruler of Woes" once per turn.