聖なる薄暮の騎士団
クリーチャー — 吸血鬼・騎士
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それぞれ
かそのクリーチャーの色のマナ１点を支払う。）
飛行、絆魂、速攻
賛美（あなたがコントロールしているクリーチャーが単独で攻撃するたび、ターン終了時まで、そのクリーチャーは＋１/＋１の修整を受ける。）
あなたがコントロールしていてこれでないすべての吸血鬼は賛美を持つ。
Illustrated by
The Lost Caverns of Ixalan Commander#97RareJapaneseLegality
Rulings
A creature attacks alone if it's the only creature declared as an attacker during the declare attackers step (including creatures controlled by your teammates, if applicable). For example, exalted won't trigger if you attack with multiple creatures and all but one of them are removed from combat.
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.
Tapping a multicolored creature using convoke will pay for or one mana of your choice of any of that creature's colors.
If a creature you control has a mana ability with 
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.
Because convoke isn't an alternative cost, it can be used in conjunction with alternative costs.
Tapping an untapped creature that's attacking or blocking to convoke a spell won't cause that creature to stop attacking or blocking.
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.