Hanhla, Destiny Forged

{1}, {t}: Add {r}{r} to your mana pool. Spend this mana only to cast a red spell, activate an ability of a red permanent, or pay a cost that contains {r}.
If you cast a card with converted mana cost equal to or more than 6 this turn, exile Hanhla, Destiny Forged, then return her to the battlefield transformed under her owner's control.