ダイアモンドのライオン
アーティファクト・クリーチャー — 猫
, あなたの手札を捨てる, ダイヤモンドのライオンを生け贄に捧げる：好きな色１色のマナ３点を加える。起動はインスタントとしてのみ行う。
2/2
standard
future
historic
gladiator
pioneer
explorer
modern
legacy
pauper
vintage
penny
commander
brawl
alchemy
paupercommander
duel
oldschool
premodern
Rulings
You can't cast an instant (or activate an ability as an instant) while casting a spell. Therefore, much like Lion's Eye Diamond, you can't activate the ability intending to use the mana to cast a spell from your hand.
Even though you can only activate this as an instant, it is still a mana ability. It doesn't use the stack and cannot be responded to.
Even though you can only activate this as an instant, it is still a mana ability. It doesn't use the stack and cannot be responded to.
Rulings
You can't cast an instant (or activate an ability as an instant) while casting a spell. Therefore, much like Lion's Eye Diamond, you can't activate the ability intending to use the mana to cast a spell from your hand.
Even though you can only activate this as an instant, it is still a mana ability. It doesn't use the stack and cannot be responded to.
Even though you can only activate this as an instant, it is still a mana ability. It doesn't use the stack and cannot be responded to.
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