Ashling, the Limitless (ECC 1)

Legendary Creature — Elemental Sorcerer • Mana cost: {2}{R} • Lorwyn Eclipsed Commander • Mythic

Elemental permanent spells you cast from your hand gain evoke {4} 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 {W}{U}{B}{R}{G}.

Illustrated by Kai Carpenter.