Heron Flight Invader

Flying
Landborn (Plains): (Whenever a Plains enters the
battlefield under your control, return Heron Flight
Invader from your graveyard to your hand.)
Heron Flight Invader and Humans you control
can only have -1/-1 counters placed on them by
themselves.
With the Dwarf Gate open, the Angelic Power native
to Innistrad flowed through the gate undetected.
Causing the land itself to manifest defenders.