Omnath, Eternal Locus

Landfall- Whenever a land enters the battlefield
under your control, other elementals gain haste,
trample, lifelink, hexproof, and deathtouch until
end of turn.
Lands you control are also 4/4 elementals and
every color. Other elementals get +1/+1. You
may play lands from graveyards. Lands you
control tap for any color of mana.
{1}: Untap up to two lands you control.
You lose 5 life.