mtg most op cards The 23 best of all time This is my attempt to

If a creature on the battlefield has in its mana cost, X is considered to be 0

You can argue about every other placement on this list, and I'm confident that in a vote I would be in the minority on what deserves the two slot, but no one thinks this is anything but Black Lotus

The Arena economy is so punishing that I just can't, in good conscience, recommend that you spend your mythic wildcards on Chatterfang, Squirrel General on the off-chance that Squirrels end up being somewhat playable

The card is just so powerful for a three-mana planeswalker, with a +2 ability, a quick clock, and a way to essentially steal your opponent's creatures