Rootwire Amalgam
~$0.41 low · ~$1.71 high
Colorless. Artifact Creature — Golem

The Brothers' War #203 · Illustrated by Leon Tukker
What is Rootwire Amalgam worth?
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TCGplayer market prices in USD, updated October 14, 2026. Each price is for one printing and one finish.
Oracle text
Prototype — 2/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)
, Sacrifice this creature: Create an X/X colorless Golem artifact creature token, where X is three times this creature's power. It gains haste until end of turn. Activate only as a sorcery.
5/5
Format legality
All 4 printings of Rootwire Amalgam
| Printing | Rarity | Non-foil | Foil | Cardmarket (EUR) | My collection |
|---|---|---|---|---|---|
The Brothers' War bro #203· 2022mythic· Cardmarket €0.29 · €0.43 foil | mythic | $0.41 | $0.48 | €0.29€0.43 foil | |
The Brothers' War bro #351· 2022Extended Artmythic· Cardmarket €0.98 · €1.00 foil | mythic | $0.71 | $0.89 | €0.98€1.00 foil | |
The Brothers' War Promos pbro #203p· 2022Promomythic· Cardmarket €1.07 · €1.27 foil | mythic | $0.77 | $0.83 | €1.07€1.27 foil | |
The Brothers' War Promos pbro #203s· 2022Promomythic· Cardmarket €0.50 foil | mythic | No non-foil printing | $1.71 | €0.50 foil |
Prices are TCGplayer market prices in USD for each printing and finish, via Scryfall. They are a guide, not an appraisal.
Where to buy Rootwire Amalgam
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Card details
- First printed
- 2022
- Printings
- 4
- Mana value
- 5
- EDHREC rank
- #13,500 on EDHREC (Commander popularity)
- Keywords
- Prototype
- Artist
- Leon Tukker
What the codes mean
The small print at the bottom of the The Brothers' War card (#203).
203 · BRO · M · EN
- 203Collector number: this card's place in the set list. Main-set cards print it over the set's card count.
- BROSet code for The Brothers' War
- MMythic rare
- ENPrinted in English
How to read a Magic card: every part and code, on real cards.
Rulings (8)
2022-10-14
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.
2022-10-14
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.
2022-10-14
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.
2022-10-14
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.
2022-10-14
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.
2022-10-14
Use Rootwire Amalgam's power as it existed the last time it was on the battlefield (not the power of the creature card in the graveyard) to determine the value of X.
2022-10-14
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.
2022-10-14
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.
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