First printed in The Brothers' War (2022)
Artifact Creature — Golem
Prototype 
— 1/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)
: Add an amount of equal to this creature's power.
A thousand years of growth, harvested in minutes.
3/6
- Illustrated by
- Daarken
Legality
- Legal in
- Pioneer, Modern, Legacy, Vintage, Historic, Timeless, Gladiator, Commander, Duel Commander, Oathbreaker, Brawl, Competitive Brawl
- Not legal in
- Standard, Pauper, Future Standard, Alchemy, Penny Dreadful, Premodern, Old School 93/94, Pauper Commander, PreDH, Tiny Leaders, Standard Brawl
Rulings (7)
- A prototype card is a colorless card in every zone except the stack or the battlefield, as well as while on the stack or the battlefield if not cast as a prototyped spell. Ignore its alternative characteristics in those cases. For example, while it's in your graveyard, Blitz Automaton is a colorless creature card with mana value 7. It can't be the target of Recommission, a spell that targets an artifact or creature card with mana value 3 or less in your graveyard.
- Casting a prototyped spell isn't the same as casting it for an alternative cost, and an alternative cost may be applied to a spell cast this way. For example, if an effect allows you to cast an artifact card without paying its mana cost, you could either cast Blitz Automaton normally, or as a prototyped spell.
- If an effect copies a prototyped spell, that copy (as well as the token it becomes on the battlefield) will have the same characteristics as the prototyped spell. Similarly, if an effect creates a token that's a copy of a prototyped permanent or causes another permanent to become a copy of it, the copy would have the same characteristics as the prototyped permanent.
- When casting a prototyped spell, use only its prototype characteristics to determine whether it's legal to cast it. For example, if Blitz Automaton is exiled with the last ability of Chandra, Dressed to Kill, you would be able to cast it for
(because it's a red spell), even though you wouldn't be able to cast it as a colorless spell for its normal cost. - The prototype ability functions in any zone that the spell could be cast from. For example, if an effect allows you to cast artifact spells from your graveyard, you could cast a prototyped Blitz Automaton from your graveyard.
- When cast as a prototyped spell, that spell has the mana cost, power, and toughness characteristics shown in its colored, secondary text box rather than the normal values of those characteristics. Its color and mana value are determined by that mana cost. The permanent that spell becomes as it resolves has the same characteristics. If the spell leaves the stack in any other way, or the permanent it becomes leaves the battlefield, it immediately resumes using its normal characteristics.
- Regardless of how it was cast, a prototype card always has the same name, abilities, types, and so on. Only the mana cost, mana value, color, power, and toughness change depending on whether the card was cast as a prototyped spell.
Prices
MTGO price: 0.003 TIX, the cheapest non-foil print (average sell price on GoatBots, 1 Nov 2026).
Combos
28 combos, the most popular first:
- Infinite card draw, Infinite draw triggers…: Cradle Clearcutter + Staff of Domination
- Infinite green mana, Infinitely large creature until end of turn…: Cradle Clearcutter + Umbral Mantle
- Infinite green mana, Infinite untap of artifact creatures you control: Cradle Clearcutter + Voltaic Construct
- Infinite mana creatures you control can produce, Infinite untap of creatures you control…: Cradle Clearcutter + Sword of the Paruns
- Infinite creature ETB, Infinite creature LTB…: Cradle Clearcutter + Hyrax Tower Scout + Temur Sabertooth
- Infinite creature LTB, Infinite creature ETB…: Cradle Clearcutter + Hyrax Tower Scout + Kogla, the Titan Ape
- Infinite colored mana: Cradle Clearcutter + Marvin, Murderous Mimic + Pili-Pala
- Infinite creature LTB, Infinite creature ETB…: Ashaya, Soul of the Wild + Cradle Clearcutter + Scryb Ranger
- Infinite green mana, Infinite proliferate: Cradle Clearcutter + Experiment Kraj + Gilder Bairn
- Infinite green mana, Infinite +1/+1 counters on a creature: Cradle Clearcutter + Farmstead Gleaner + Marvin, Murderous Mimic