When I play a creature for its mutate cost, is it still a creature spell?
For example if I play Gemrazer while Animar, Soul of Elements is on the battlefield, will Animar get a +1/+1 counter?
When I play a creature for its mutate cost, is it still a creature spell?
For example if I play Gemrazer while Animar, Soul of Elements is on the battlefield, will Animar get a +1/+1 counter?
Yes, a creature card cast for its mutate cost is still a creature spell.
In the Mutate rules, rule 702.104a says
Mutate appears on some creature cards. It represents a static ability that functions while the spell with mutate is on the stack. “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.” Casting a spell using its mutate ability follows the rules for paying alternative costs (see 601.2b and 601.2f–h).