Omnath, Locus of Eternity

Landfall —Whenever a land enters the battlefield under your control, create X 3/3 red and black elemental creature tokens where X is the life
you have lost this turn.

At the beginning of your post combat main phase, reveal the top X cards and put any number of lands from among them onto the battlefield tapped where
X is the number of elementals that dealt combat damage this turn.