Grisaille Prison (SHSP-EN078) - Shadow Specters Unlimited

If you control a Tribute, Ritual, and/or Fusion Summoned monster: Neither player can Synchro or Xyz Summon, also the effects of all face-up Xyz Monsters and Synchro Monsters currently on the field are negated and they cannot attack. These changes last until the end of your opponent's next turn.