Legendary Creature — Goblin Wizard

Krark, the Thumbless

Mana value2EDHREC#3,427PartnerYes

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The Commander

Whenever you cast an instant or sorcery spell, flip a coin. If you lose the flip, return that spell to its owner's hand. If you win the flip, copy that spell, and you may choose new targets for the copy.

Partner (You can have two commanders if both have partner.)

Guide

Gameplan

Krark turns every instant and sorcery into a coin-flip lottery: lose and you get the spell back to recast, win and you copy it. You build a low-curve spellslinger deck loaded with cantrips and copy/flip payoffs, then chain spells that net card advantage or burn until a flip-doubling engine snowballs into lethal. Most lists pair Krark with Sakashima of a Thousand Faces to copy Krark himself and stack flip triggers.

Strengths

Effectively free spell recursion—losing the flip just hands the spell back
Huge value upside copying card draw, burn, and removal
Cheap (MV2) and partner-enabled for strong two-commander synergy
Krumar/coin-flip payoffs and rerolls make the variance lopsidedly in your favor
Excellent in a tight mono-red spellslinger shell

Weaknesses

Inherently variance-dependent without flip-fixing cards
Mono-red lacks counterspells and clean enchantment/artifact answers
Krark gets removed easily and triggers stop
Can be a non-bo with X spells or spells you don't want bounced
Vulnerable to graveyard/hand disruption and fast combo decks

Key Cards

Sakashima of a Thousand Faces — The premier partner: copies Krark so each spell flips twice, multiplying copies and recursion.
Krark's Other Thumb — Lets you flip an extra coin and ignore one, turning Krark's flips into near-guaranteed wins.
Frenetic Sliver — Gives you a flip to potentially save and copy permanents, deepening the coin-flip engine.
Birgi, God of Storytelling — Generates red mana on each cast to fuel long Krark spell chains and storm-style turns.
Mana Echoes — Pays for your spell chain by producing mana off goblin and token casts.
Possibility Storm — Combos with Krark loops and chaos shells, though more of a build-around.
Grapeshot — A copyable storm payoff that Krark turns into a lethal finisher after a long chain.

Upgrade Path

Add flip-fixing redundancy (Krark's Other Thumb, Frenetic Efreet, Mirror-style rerolls) so wins beat variance, plus cost reducers like Birgi and Goblin Electromancer to chain spells. Lean into a dedicated combo line—free spells (Mana Geyser, ritual loops) with Aetherflux Reservoir or storm payoffs—and run Sakashima to double Krark itself. Tighten the curve with efficient cantrips (Ponder-style red draw, Wheel effects) and protect Krark with cheap haste/recursion to maximize triggers.

Core Cards

The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.

Win Conditions

▸Storm off with Grapeshot or similar after a long copied spell chain
▸Doubled burn spells (Fireball, Comet Storm) to the face
▸Infinite-damage loops using free spells, copy effects, and flip-fixers
▸Aetherflux Reservoir lifegain into a 50-damage zap

Archetypes

Spellslinger — Krark rewards casting tons of cheap instants and sorceries, copying the good ones for value.
Combo — Flip-fixers like Krark's Other Thumb plus free spells enable recursive copy loops for infinite damage or mana.
Storm — Cheap cantrips that bounce back to hand let you build a high storm count toward Grapeshot or Aetherflux.
Group Slug/Burn — Copying burn spells doubles direct damage to close games out of nowhere.