Explosive Elemental

Whenever you cast an elemental spell, reveal cards
from the top of your library until you reveal an
instant or sorcery card. Put that card into your
hand and the rest on the bottom of your library in a random order.
Whenever you cast an instant or sorcery spell, reveal
cards from the top of your library until you reveal
an elemental creature card. Put that card into your
hand and the rest on the bottom of your library in a random order.