Krark, the Thumbless

Coin-flip cards have long been a variance tax dressed up as a mechanic, a joke about randomness with nothing to catch you when the coin lands wrong. This design rewires the incentive. Any instant or sorcery leaving your hand becomes a fifty-fifty on the stack: heads doubles the spell with fresh targets, tails snatches it back before it resolves. What turns that gamble into an engine is that the losing outcome hands the spell right back to you. Miss the flip, recast, flip again, and a hand full of cheap cantrips plus a little mana becomes a slot machine you rarely leave empty-handed. The copy clause carries the real threat: a win stacks a duplicate of the original with new targets, so one removal spell splits across two creatures, one burn spell doubles its face damage, one tutor fetches twice. It rewards redundancy and cheap recursion over raw power, which is why replaying spells for next to nothing pairs so naturally with it. Partner is the accelerant, opening a second command-zone identity that supplies either the payoff (somewhere to bank the extra copies) or a lever to bend the odds toward you. The result is a design where the downside loops back into the setup, a gamble that only ever ratchets forward, built into a 2/2 Goblin's whole personality.