金之尾の教練者
クリーチャー — 狐・侍
あなたがオーラや装備品である呪文を唱えるためのコストは少なくなる。Ｘは、金之尾の教練者のパワーに等しい。
金之尾の教練者が攻撃するたび、ターン終了時まで、あなたがコントロールしていて改善されていてこれでないすべてのクリーチャーは＋Ｘ/＋Ｘの修整を受ける。Ｘは、金之尾の教練者のパワーに等しい。（装備品やあなたがコントロールしているオーラがついているかカウンターが置かれているクリーチャーは改善されている。）
金之尾の教練者が攻撃するたび、ターン終了時まで、あなたがコントロールしていて改善されていてこれでないすべてのクリーチャーは＋Ｘ/＋Ｘの修整を受ける。Ｘは、金之尾の教練者のパワーに等しい。（装備品やあなたがコントロールしているオーラがついているかカウンターが置かれているクリーチャーは改善されている。）
1/3
standard
future
historic
gladiator
pioneer
explorer
modern
legacy
pauper
vintage
penny
commander
brawl
alchemy
paupercommander
duel
oldschool
premodern
Rulings
All costs to cast a spell are locked in before mana abilities are activated and those costs are paid. If Golden-Tail Trainer's power changes after costs are locked in, or if Golden-Tail Trainer leaves the battlefield while you are activating mana abilities or paying those costs, the cost reduction effect won't be affected and the total cost to cast the spell won't change.
The value of X in Golden-Tail Trainer's last ability is determined only as the ability resolves.
An Aura controlled by another player does not cause a creature you control to be modified.
A creature that is equipped is considered modified no matter who controls the Equipment that's attached to it.
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell remains unchanged, no matter what the total cost to cast it was.
A creature with a counter on it is considered modified no matter what kind of counter it is or which player put it on that creature.
Only creatures can be modified. If a modified creature stops being a creature, it is no longer considered modified.
The value of X in Golden-Tail Trainer's last ability is determined only as the ability resolves.
An Aura controlled by another player does not cause a creature you control to be modified.
A creature that is equipped is considered modified no matter who controls the Equipment that's attached to it.
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell remains unchanged, no matter what the total cost to cast it was.
A creature with a counter on it is considered modified no matter what kind of counter it is or which player put it on that creature.
Only creatures can be modified. If a modified creature stops being a creature, it is no longer considered modified.
Rulings
All costs to cast a spell are locked in before mana abilities are activated and those costs are paid. If Golden-Tail Trainer's power changes after costs are locked in, or if Golden-Tail Trainer leaves the battlefield while you are activating mana abilities or paying those costs, the cost reduction effect won't be affected and the total cost to cast the spell won't change.
The value of X in Golden-Tail Trainer's last ability is determined only as the ability resolves.
An Aura controlled by another player does not cause a creature you control to be modified.
A creature that is equipped is considered modified no matter who controls the Equipment that's attached to it.
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell remains unchanged, no matter what the total cost to cast it was.
A creature with a counter on it is considered modified no matter what kind of counter it is or which player put it on that creature.
Only creatures can be modified. If a modified creature stops being a creature, it is no longer considered modified.
The value of X in Golden-Tail Trainer's last ability is determined only as the ability resolves.
An Aura controlled by another player does not cause a creature you control to be modified.
A creature that is equipped is considered modified no matter who controls the Equipment that's attached to it.
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell remains unchanged, no matter what the total cost to cast it was.
A creature with a counter on it is considered modified no matter what kind of counter it is or which player put it on that creature.
Only creatures can be modified. If a modified creature stops being a creature, it is no longer considered modified.
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