Changeling Berserker [The List] Other Acc. the Mind Flail isn't a

the Mind Flail isn't a creature unless you control three or more permanents you don't own

Set: 30th Anniversary Edition Type: Creature — Wall Rarity: Uncommon Cost: {3}{W} Defender (This creature can't attack

Set: Commander Masters Type: Legendary Planeswalker — Chandra Rarity: Mythic Cost: {4}{R}{R} This spell can't be countered

The more Esper changes

Changeling Berserker [The List] Other Acc. the Mind Flail isn't aSet: The List Type: Creature Shapeshifter Rarity: Uncommon Cost: {3}{R} Changeling (This card is every creature type.) Haste Champion a creature (When this enters, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield.)