熟考漂い

飛行
熟考漂いが戦場に出たとき、カードを２枚引く。
想起{2}{U}（あなたはこの呪文を、これの想起コストで唱えてもよい。そうしたなら、これが戦場に出たとき、これを生け贄に捧げる。）

漂念精

飞行
当漂念精进战场时，抓两张牌。
呼魂{2}{U}（你可以支付此咒语的呼魂费用来施放它。若你如此作，当它进战场时便牺牲之。）

Mulldrifter

Flying
When this creature enters, draw two cards.
Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

If a strange, flying eel ever crosses your mind, follow it.

Secret Lair Drop

Murders at Karlov Manor Commander

Flying
When Mulldrifter enters the battlefield, draw two cards.
Evoke {2}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

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Double Masters 2022

If you pay the evoke cost, you can have Mulldrifter's own triggered ability resolve before the evoke triggered ability. You can cast spells after that ability resolves but before you have to sacrifice Mulldrifter.

To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as an evoke cost), add any cost increases, then apply any cost reductions. The mana value of the spell is determined by only its mana cost, no matter what the total cost to cast that spell was.