Guard of the Murken Dungeon

Here's the effect:
2 Level 4 monsters
While this card has Xyz Material; your effects cannot be negated and the effects of your opponent's cards that make them unaffected by other card effects are negated(even if they are unaffected by this effect). During either player's turn; you can detach 2 Xyz Material from this card, negate the effects of all monsters your opponent controls until the End Phase.

YuGiOh is owned by Konami/Kazuki Takahashi
Artwork is owned by their respective creators