Cirno, The Summer Breeze

Flying, haste

{t}, Tap up to two target creatures

When you cast a fairy spell, you gain 3 Spell Counters

Remove 3 Spell Counters: Search your library for a fairy card, put it into your hand, then shuffle.
Remove 9 Spell Counters: Take an extra turn after this one. Lands on that turn produse additional one mana of any color