12 Nov 2019
Animate Spell loses “enchant instant or sorcery spell on the stack” and gains “enchant permanent put onto the battlefield with Animate Spell” before becoming attached to that creature. It doesn’t say that on the card, but we’ll figure it out later.
12 Nov 2019
If the creature leaves the battlefield before or at the same time as Animate Spell, it can’t be cast.
12 Nov 2019
While resolving Animate Spell’s last ability, the spell is cast from the battlefield. As it moves to the stack, it stops being a creature. Its controller must pay its costs if they wish to cast it.
12 Nov 2019
Use the mana value of the spell to determine the power and toughness of the creature it becomes. For a spell with {X} in its mana cost, use the value chosen for X to determine its mana value.