Ashling, the Limitless

Legendary Creature — Elemental Sorcerer

Elemental permanent spells you cast from your hand gain evoke four generic mana as you cast them. (If you cast a spell for its evoke cost, it's sacrificed when it enters.) Whenever you sacrifice a nontoken Elemental, create a token that's a copy of it. The token gains haste until end of turn. At the beginning of your next end step, sacrifice it unless you pay one white mana one blue mana one black mana one red mana one green mana .