horse of the dawn

trample, haste, and hexproof
As long as you control Athreos, Shroud-Veiled, your life total is 15.(it isn't affected by damage or effects.)
partner with Athreos, Shroud-Veiled.
Escape—{4}{r}{r}, Exile four other cards from your graveyard. (You may cast this card from
your graveyard for its escape cost.)