Abyssal Digi-Vortex

Only cast Abyssal Digi-Vortex if you control a creature with power 7 or greater.
Each opponent sacrifices half the creatures they control, rounded up. For each creature sacrificed this way, create a 2/2 black and blue Digimon token with "Whenever this creature deals combat damage to a player, that player discards a card." Then, if you control ten or more creatures, take an extra turn after this one.