Kristallschatten-Drachen-Eklipse

3 Level 12 monsters Must be Xyz Summoned, or Special Summoned from your Extra Deck by using 1 Level 8 or higher “Kristallschatten-Drache” Synchro Monster you control as material. (This is treated as an Xyz Summon.) Once per turn, during your opponent’s Main Phase (Quick Effect): You can detach 1 material from this card; negate the activation of a Spell/Trap Card or monster effect, and if you do, destroy that card. If this card has 3 or more materials: You can Tribute this card; destroy all monsters on the field. If you have 2 “Kristallschatten-Drache” monsters in your banished zone: You can attach up to 2 of those monsters to this card as material. You can only activate this effect once per turn.