Lifespring Acolyte

Lifespring Acolyte costs {4} less to cast if you control a creature named Lifespring Acolyte.
Whenever you play a land, put an Age counter on Lifespring Acolyte. When Lifespring Acolyte has 3 or more Age counters on it, sacrifice it. If you do, search your library for a basic land, card, put it onto the battlefield, then shuffle your library.
"Once life is abundant, I will have no purpose"