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Game Changer · Card Advantage

Seedborn Muse

GreenCreature — Spirit{3}{G}{G} Buy on TCGplayer

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Is Seedborn Muse a Game Changer?

Yes. Seedborn Muse is on the official Wizards of the Coast Commander Game Changers list. Untaps all your permanents on every other player's turn — four turns' worth of mana per cycle.

Why is Seedborn Muse a Game Changer?

Seedborn Muse untaps all your permanents during every other player's untap step, which in a four-player game means you effectively take four turns' worth of mana per rotation. Every activated ability, every instant, every land is available on all four turns instead of one. It converts a normal board into an engine that acts constantly while everyone else acts once. Five mana is the only brake, and green ramps past that easily — which is why it has been an immediate removal magnet for as long as the format has existed.

What bracket can I play Seedborn Muse in?

  • Bracket 1 & 2 — not allowed. A single copy of Seedborn Muse puts your deck above Core.
  • Bracket 3 (Upgraded) — allowed, and it counts as one of your three permitted Game Changers.
  • Bracket 4 & 5 — no limit, so it costs you nothing here.

This applies whether Seedborn Muse is in your 99 or in the command zone. Not sure how many you are running in total? Run your decklist through the analyzer — it flags every Game Changer it finds and shows the resulting bracket.

Other Card Advantage Game Changers

Ad Nauseam

Draws a huge chunk of your deck at instant speed for a life total you were going to win with anyway.

Bolas's Citadel

Casts your whole library off the top, paying life instead of mana.

Consecrated Sphinx

Draws you two cards for every card each opponent draws — six per turn cycle in a four-player game.

Necropotence

Pay life, draw cards, with no limit other than your life total.

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One of 53 Game Changers · list last updated by Wizards on 9 February 2026