Mori Koko, The Living Crux

Vigilance, trample, haste.
Whenever a land you control is put into a
graveyard from anywhere, create a 3/3 green
Deer creature token with vigilance, trample,
haste.
Whenever a land you own is put into the
battlefield from a graveyard, you gain 3 life.
Rejoice! The end of eternity!