燃える魂、サルカン

あなたがドラゴン・呪文を唱えるためのコストは{1}少なくなる。
ドラゴン１体があなたのコントロール下で戦場に出るたび、あなたは「ターン終了時まで、燃える魂、サルカンは名前が『燃える魂、サルカン』であり、他のタイプに加えて伝説であることを除き、それのコピーになる。」を選んでもよい。

昂焰灵魂萨坎

你施放的龙咒语减少{1}来施放。
每当一个龙在你的操控下进战场时，你可以使昂焰灵魂萨坎成为前者的复制品直到回合结束，但它的名称是昂焰灵魂萨坎，且额外是传奇。

Sarkhan, Soul Aflame

Dragon spells you cast cost {1} less to cast.
Whenever a Dragon you control enters, you may have Sarkhan become a copy of it until end of turn, except its name is Sarkhan, Soul Aflame and it's legendary in addition to its other types.

March of the Machine: The Aftermath

Dragon spells you cast cost {1} less to cast.
Whenever a Dragon enters the battlefield under your control, you may have Sarkhan, Soul Aflame become a copy of it until end of turn, except its name is Sarkhan, Soul Aflame and it's legendary in addition to its other types.

If the Dragon that enters the battlefield is legendary and you have Sarkhan copy it, the two Dragons will have different names (unless the entering Dragon is somehow named Sarkhan, Soul Aflame). The "legend rule" won't apply.

If the copied Dragon has {X} in its mana cost, X is 0.

If the copied Dragon is a token, Sarkhan copies the original characteristics of that token as stated by the effect that created that token, with the noted exceptions.

In some unusual cases, the Dragon that entered the battlefield will be copying something else by the time Sarkhan's ability resolves. In such a case, Sarkhan will copy whatever the Dragon is copying, with the noted exceptions.

Sarkhan copies exactly what was printed on the original Dragon and nothing else, with the noted exceptions (unless that creature is a token; see below). It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on in response to Sarkhan's ability.

Sarkhan's first ability doesn't change the mana cost or mana value of any Dragon spell. It changes only the total cost you pay.

That ability can't reduce the amount of colored mana you pay for a Dragon spell. It reduces only the generic component of that cost.