Crystal Form: Mimic

Place a number of +1/+1 counters on enchanted creature equal to its converted mana cost, then enchanted creature becomes a copy of target creature an opponent controls, except it's
an artifact in addition to its other types.
Animate: {g}{u}(Create a 0/0 colorless Spark creature token, then put this Aura card from your
hand onto the battlefield attached to it)