I wanna ruin this game, so let's try an Xyz Monster that's the WORST floodgate ever

[ABC Gun]

Yes I know, I did a post like this earlier I hope I fixed it this time and the title of this post is cringy clickbait. It also doubles as Fake News.
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Effect:
4 Rank 4 Xyz Monsters with the same Type
(Xyz Materials attached to any monster used for this card's Xyz Summon also become Xyz Materials on this card.) Cannot be used as a Tribute or as Fusion, Synchro, or Xyz Material for a Summon. While this card has a Rank 4 Xyz Monster as Xyz Material, cards and effects on the field cannot be activated and are negated, except the effects of Rank 4 Xyz Monsters. Once per turn, during either player's End Phase: Detach 1 Xyz Material from this card unless you make it lose 400 ATK and DEF.