Storm Water Elemental

Whenever Storm Water Elemental enters the battlefield or attacks, you gain {e}{e}.
{u}{u}: Exile Storm Water Elemental, then return
it to the battlefield tapped.
"There! Right there, in the middle of the storm! Once
we slay that elemental, we will be famous and rich
forever! Hey, where did it go?"
—Lee, Shoreside Captan, last words