Omnath, Locus of Eldrazi

Landfall- Put a devoid counter on target land.
Lands that have a devoid counter gain
"{t}: Add {c}" and "If this permanent is
sacrificed, its controller loses 5 life"
and loses all other abilities.
Omnath, Locus of Eldrazi gains Anhiallator 4
as long as there are 4 or more lands with
devoid counters on them.