Donatello, the Brains

Card text

If one or more tokens would be created under your control, those tokens plus a Mutagen token are created instead.

Partner-Character select (You can have two commanders if both have this ability.)

"I always thought there'd be more to the ooze."

Market price

Latest aggregated market price for the normal finish of this printing: $1.48 (as of 2026-11-02).

The figure covers this printing only; other printings carry their own price on their own page.

Format legality

Legality of Donatello, the Brains by format. Formats in which it is not legal are not listed.

Other printings of Donatello, the Brains

The other printings are listed newest first, with the rarity and release year of each.

Official rulings

The 8 most recent official rulings for Donatello, the Brains, newest first.

• 2026-01-27 If your Commander deck has two commanders, you can only include cards whose own color identities are also found in your commanders' combined color identities. If Donatello, the Brains and Splinter, the Mentor are your commanders, your deck may contain cards with blue and/or black in their color identity, but not cards with red, green, or white. (If Leonardo, the Balance is one of your commanders, your deck may contain cards with any color or combination of colors in their color identity, regardless of who your other commander is.)
• 2026-01-27 To have two commanders, both must have appropriate partner abilities as the game begins. Losing the ability during the game doesn't cause either to cease to be your commander.
• 2026-01-27 Both commanders start in the command zone, and the remaining 98 cards of your deck are shuffled to become your library.
• 2026-01-27 If something refers to your commander while you have two commanders, it refers to one of them of your choice. If you are instructed to perform an action on your commander (e.g. put it from the command zone into your hand due to Command Beacon), you choose one of your commanders at the time the effect happens.
• 2026-01-27 You don't need to control the spell or ability that creates the tokens, but you do have to be the one creating the tokens for Donatello's first ability to apply.
• 2026-01-27 An effect that checks whether you control your commander is satisfied if you control one or both of your two commanders.
• 2026-01-27 Once the game begins, your two commanders are tracked separately. If you cast one, you won't have to pay an additional {2} the first time you cast the other. A player loses the game after having been dealt 21 damage from any one of them, not from both of them combined.
• 2026-01-27 Mutagen tokens are a kind of predefined token. Each one is a colorless artifact with the artifact subtype Mutagen and the ability "{1}, {T}, Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery."

Similar cards

Other creature cards with a blue colour identity, ranked by how often they appear in Commander decks.

• Archmage Emeritus
• Hullbreaker Horror
• Faerie Mastermind
• Spark Double
• Thassa's Oracle