updates | June 08, 2026

Is mutate an alternative cost?

Mutate represents an alternative cost. To determine the total cost of a spell, start with the mana cost or alternative cost you’re paying (such as the alternative cost of mutate), add any cost increases, then apply any cost reductions.

Does mutate count as ETB?

ETB Triggers – When you merge a creature, the mutating spell does not enter the battlefield so no ETB triggers will happen. The resulting permanent is a mutated permanent.

Does mutate count as casting a spell?

Mutate can be used only if you’re casting the spell. If a creature card with mutate enters the battlefield some other way, it just enters the battlefield.

Does Umori mutate cheaper?

Yes, Mutate is an alternative casting cost, Umori reduces casting costs.

Can you mutate from the graveyard?

Can I use the mutate ability if I bring a creature card from my graveyard or library to the battlefield? Mutate can only be used if you’re casting the spell. If the creature card were to enter the battlefield in another way, it just enters the battlefield.

Does Pollywog reduce mutate cost?

Pollywog Symbiote’s first ability applies to creature spells you cast that have mutate even if you don’t cast them for their mutate cost. Effects that reduce the generic mana cost of a spell (such as that of Pollywog Symbiote) can’t reduce that spell’s colored mana requirements.

Does Umori work with mutate?

Do you have to pay alternate cost for mutate?

Mutate requires you to pay an alternate casting cost. You can only pay one alternate cost per spell you cast, which matters because casting free spells off Fires of Invention is also an alternate cost. Therefore, you cannot use Fires to mutate for free.

Do you have to pay the mutate cost of a spell?

Casting a creature spell for its mutate cost also has a few requirements: You pay the mutate cost rather than the mana cost. A non-Human creature target you own currently on the battlefield.

Can you use mutate on a creature card?

Mutate can only be used if you’re casting the spell. If the creature card were to enter the battlefield in another way, it just enters the battlefield. If I cast a creature for its mutate cost, do I also have to pay the mana cost?

What does it mean to mutate a spell in RuneScape?

“Mutate [cost]” means “You may pay [cost] rather than pay this spell’s mana cost. If you do, it becomes a mutating creature spell and targets a non-Human creature with the same owner as this spell.”