Vastplains

Whenever Vastplains enters the battlefield you
may then return a land you control to its owners
hand, if you do create two Food tokens (They're
artifact tokens with "{2}, {t}, Sacrifice this artifact:
You gain 3 life".)
{t}: Add {w} to your mana pool.
Sacrifice two Food tokens: Add {c} to your mana
pool. You gain 2 life.