Omnath, Locus of Creativity

When - enters the battlefield, creatures you
control gain Indestructible and Haste until
end of the turn.
When - enters the battlefield, it fights up to one
target creature you don't control.
Landfall — Whenever a land enters the battlefield
under your control, exile up to one target
creature you control, then return it to the battlefield under its owner's control.
The Eldrazi threat is no more, but the Flickering Heart still beats.