A few anti-meta Xyz monsters

[Giga Hand]

Master Jammer
WIND/Spellcaster/Xyz/Rank 4/2500 ATK/2600 DEF
3 Level 4 Monsters
When your opponent Synchro Summons a Synchro Monster, you can detach 1 Xyz Material Monster from this card to negate the Summon of that monster and destroy it. When this card has no Xyz Materials, it cannot declare an attack.

[i]Even the stats are sort of anti-meta, not that I really know what I'm talking about. It has enough ATK to run over Hyper Librarian, and enough DEF to wall Stardust and Shi En.[/i]

Master of the Golden Sword
EARTH/Warrior/Xyz/Rank 4/2200 ATK/2000 DEF
2 Level 4 Monsters
When your opponent successfully Synchro Summons a Synchro Monster, you can detach 1 Xyz Material Monster from this card to draw 2 cards. When this card has no Xyz Materials, destroy it and 1 other card you control.

[i]Note that you can't use both at the same time. Since this card's stats are poor, it's likely to die to any synchro monster not named Formula Synchron. Since it's doomed anyway, the drawback still makes it an effective +1. Even if no one is dumb enough to Synchro Summon while these are on the field, their effects may as well be "Your opponent cannot Synchro Summon".[/i]