Gloom

{t}: Add one mana of any color. Gain 1 life.
At the beginning of your end step, sacrifice
Gloom and a Leaf Stone you control. If you do,
search your hand or library for a Vileplume and
place it in the battlefield.
"Its pistils exude an incredibly foul odor.
The horrid stench can cause fainting at a distance
of 1.25 miles."
-Pokedex Entry