Worldgorger Hydra

Reach
At the beginning of your upkeep, sacrifice a land.
If you do put four +1/+1 counters on
Worldgorger Hydra.
At the beginning of your end step, if you control
4 or fewer lands, shuffle Worldgorger Hydra into
your library. If you do, you may return up to
two land cards from your graveyard to the
battlefield tapped.