Kai1411 [2013-07-30 02:54:08 +0000 UTC]
Good effect but let me shorten it a little bit:
During either player's turn, When a monster(s) would be Summoned, OR a Spell/Trap Card is activated: You can detach 1 Xyz Material from this card; negate the Summon or activation, and if you do, destroy that card.
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