Mut ansammeln

Einberufen (Deine Kreaturen können dir helfen, diesen Zauberspruch zu wirken. Mit jeder Kreatur, die du tappst, während du diesen Zauberspruch wirkst, bezahlst du für {1} oder ein Mana der Farbe jener Kreatur.)
Eine Kreatur deiner Wahl erhält +2/+2 bis zum Ende des Zuges.

Armarse de valor

Convocar. (Tus criaturas pueden ayudar a lanzar este hechizo. Cada criatura que gires al lanzar este hechizo cuenta como un pago de {1} o de un maná del color de esa criatura.)
La criatura objetivo obtiene +2/+2 hasta el final del turno.

Rassembler son courage

Convocation (Vos créatures peuvent aider à lancer ce sort. Chaque créature que vous engagez en lançant ce sort paie {1} ou un mana de la couleur de cette créature.)
La créature ciblée gagne +2/+2 jusqu'à la fin du tour.

Raccogliere il Coraggio

Convocazione (Le tue creature possono aiutarti a lanciare questa magia. Ogni creatura che TAPpi mentre lanci questa magia corrisponde al pagamento di {1} o di un mana del colore di quella creatura.)
Una creatura bersaglio prende +2/+2 fino alla fine del turno.

かき集める勇気

召集（あなたのクリーチャーが、この呪文を唱える助けとなる。この呪文を唱える段階であなたがタップした各クリーチャーは、{1}かそのクリーチャーの色のマナ１点を支払う。）
クリーチャー１体を対象とする。ターン終了時まで、それは＋２/＋２の修整を受ける。

Gather Courage

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Target creature gets +2/+2 until end of turn.

Ravnica Remastered

The List

GRN Guild Kit

Magic 2015

Ravnica: City of Guilds

Convoke (Each creature you tap while playing this spell reduces its cost by {1} or by one mana of that creature's color.)
Target creature gets +2/+2 until end of turn.

Because convoke isn't an alternative cost, it can be used in conjunction with alternative costs.

If a creature you control has a mana ability with {T} in the cost, activating that ability while casting a spell with convoke will result in the creature being tapped before you pay the spell's costs. You won't be able to tap it again for convoke. Similarly, if you sacrifice a creature to activate a mana ability while casting a spell with convoke, that creature won't be on the battlefield when you pay the spell's costs, so you won't be able to tap it for convoke.

Tapping a multicolored creature using convoke will pay for {1} or one mana of your choice of any of that creature's colors.

Tapping an untapped creature that's attacking or blocking to convoke a spell won't cause that creature to stop attacking or blocking.

When calculating a spell's total cost, include any alternative costs, additional costs, or anything else that increases or reduces the cost to cast the spell. Convoke applies after the total cost is calculated. Convoke doesn't change a spell's mana cost or mana value.

You can tap any untapped creature you control to convoke a spell, even one you haven't controlled continuously since the beginning of your most recent turn.