D&D Nolzur's Marvelous Miniatures: Ice Mephit & Dust Mephit

Tormenting weaker creatures in and out of the Elemental Planes with nasty pranks, the Ice and Dust Mephits are as mean and egocentric as they come. While typically living only for themselves, they will sometimes serve as spies for genies or magic users. Can you get past their tricks and take them on?