The Spirit of Havenseed

Trample, Vigilance
When The Spirit of Havenseed enters the battlefield, you may search your library for X basic
land cards, where X is the number of creatures you control, and put them onto the battlefield tapped.
If you do, shuffle your library.
If a creature you control would die, you may instead sacrifice a land. If you do, you may return that
creature to it's owner's hand.