"You know those seedpods cluttering the eastern approach? I've got an idea . . . ."
—Calle, Urzan sergeant

„Hast du die Samenschoten gesehen, die den östlichen Zugang blockieren? Ich habe da eine Idee …"
—Calle, Urzanischer Feldwebel

Rostgoliath

Reichweite, verursacht Trampelschaden
//PRT-Prototype_Mech//
{3}{G}{G}
Prototyp (Du kannst diesen Zauberspruch mit anderen Manakosten, Farben und anderer Größe wirken. Er behält seine Fähigkeiten und Typen.)
3/5

"¿Te suenan los tegumentos que abarrotan el acceso oriental? Tengo una idea...".
—Caye, sargento de Urza

Coloso oxidado

Alcance, arrolla.
//PRT-Prototype_Mech//
{3}{G}{G}
Prototipo. (Puedes lanzar este hechizo con un coste de maná, color y tamaño distintos. Sus habilidades y tipos no cambian.)
3/5

"Tu vois, ces cosses qui encombrent la route de l'est ? J'ai une idée… »
—Calle, sergent d'Urza

Goliath de rouille

Portée, piétinement
//PRT-Prototype_Mech//
{3}{G}{G}
Prototype (Vous pouvez lancer ce sort avec un coût de mana, une couleur et une taille différents. Il garde ses capacités et ses types.)
3/5

"Hai presente quei baccelli che infestano l'accesso orientale? Mi è venuta un'idea..."
—Calle, sergente di Urza

Golia della Ruggine

Raggiungere, travolgere
//PRT-Prototype_Mech//
{3}{G}{G}
Prototipo (Puoi lanciare questa magia con costo di mana, colore e dimensione diversi. Mantiene le sue abilità e i suoi tipi.)
3/5

「東の入り口に散らばってた莢のこと知ってるか？良い考えがあるんだ……。」
――ウルザの軍曹、カル

錆ゴライアス

到達、トランプル
//PRT-Prototype_Mech//
{3}{G}{G}
試作（あなたはこの呪文を、異なるマナ・コスト、色、サイズで唱えてもよい。これは能力とタイプを保持する。）
3/5

"Sabe aquelas vagens infestando o acesso leste? Eu tenho uma ideia..."
— Calle, sargento de Urza

Golias de Ferrugem

Alcance, atropelar
//PRT-Prototype_Mech//
{3}{G}{G}
Protótipo (Você pode conjurar esta mágica com custo de mana, cor e tamanho diferentes. Ela permanece com suas habilidades e tipos.)
3/5

「还记得堆在东线的那些育苗舱吗？我想到个主意。…」
～克撒军士官凯勒

铁锈巨械

延势，践踏
//PRT-Prototype_Mech//
{3}{G}{G}
试作（你施放此咒语时可选不同法术力费用、颜色和攻防的版本，其异能与类别不变。）
3/5

Rust Goliath

Prototype {3}{G}{G} — 3/5 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)
Reach, trample

The Brothers' War

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.

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.

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.

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 {2}{R} (because it's a red spell), even though you wouldn't be able to cast it as a colorless spell for its normal cost.