How does Sneak work on Donatello, Gadget Master?

Sneak lets you cast the card for a cheaper alternative cost — here, {1}{U} instead of {2}{U} — if you also return an unblocked attacker you already control to hand during the declare blockers step. Donatello then enters tapped and attacking, effectively swapping one attacker for a cheaper, fresh one mid-combat.

What does Donatello, Gadget Master's combat damage trigger do?

Whenever it deals combat damage to a player, create a token copy of a target artifact you control — turning any strong artifact already on the battlefield (a mana rock, an equipment, a valuable ETB artifact creature) into a second copy for the cost of connecting in combat.

What deck wants Donatello, Gadget Master?

A mono-blue or Izzet artifacts-matter deck that's already running artifacts worth doubling — the more valuable the target artifact, the bigger the swing from copying it, so it rewards a deck built around a few genuinely strong artifacts rather than a pile of small ones.

Donatello, Gadget Master — Card Spotlight

See Donatello, Gadget Master's full stats and printings →

Strategies it goes well with

Artifacts-matter decks. Copying a strong artifact on combat damage is a direct payoff for running a few high-value artifacts rather than many small ones.
Evasive or unblockable shells. The combat damage trigger only fires if Donatello actually connects, so anything making it hard to block compounds its value.
Aggressive blue tempo decks. The Sneak cost lets it come down cheaply mid-combat as a surprise extra attacker, adding pressure the turn it's cast.

How it does in Commander

As the commander

It's a reasonable commander for a dedicated artifacts-matter blue deck, since guaranteed repeated access to the copy trigger from the command zone rewards building the 99 around a small number of strong, worth-copying artifacts.

In the 99

A solid value piece in any blue artifact deck even without leading it, turning combat damage into a genuine artifact duplication engine.

Formats it's strong in

Decks with a few strong artifacts. The copy trigger is worth the most when the target artifact is genuinely powerful, rewarding quality over quantity in the artifact base.
Evasive tempo decks. Getting Donatello through combat unblocked is the whole engine, so anything supporting evasion directly supports this card.

Formats it's weak in

Decks with few or weak artifacts. Copying a mediocre artifact is a small payoff for connecting in combat, which lowers the card's overall ceiling.
Decks that can't get it through combat. The value is entirely locked behind dealing combat damage to a player, so a heavily defended board neutralizes it.

Synergistic cards

Sensei's Divining Top — A strong artifact worth copying for a second card-selection engine every turn.
Sword of Fire and Ice — An equipment powerful enough that a second copy is a real board-wide swing.
Solemn Simulacrum — An artifact creature whose ETB triggers again the moment the token copy enters.
Any unblockable or evasion enabler — Getting Donatello through combat is the entire engine, so evasion support directly increases its value.

Is it worth the price?

As a recent-set card, Donatello is inexpensive and a reasonable pickup for a blue artifacts-matter deck — low financial risk for a real payoff engine.

Current printings and prices →

Donatello, Gadget Master