mtg historic banned cards 16 OP Magic That Were Oko, Thief of Crowns, Once

When it enters, you can tap X creatures and put a stun counter on any of those creatures you dont control, which means they dont untap for a turn

This is probably because it's part of a very distinctive archetype and has a somewhat unique color combination, which means unusual cards that were very cheap beforehand now have a niche

Winter, Cynical Opportunist A delirium card that burns your graveyard as a resource fascinates me

Any cards it touches are destroyed, which is exceptionally silly

But since evoked creatures actually enter the battlefield, and their ETB effects trigger regardless of whether the evoke mode was used, this version of the mechanic offered a thousand times more potential for broken combos