Zeraphon, Eldestborn

Partner with Xeraboss, Secondborn (When this creature enters the battlefield, target player may put Xeraboss into their hand from their library, then
shuffle.)
Indestructible, flying, trample
Avatar spells you cast cost {2} less to cast.
Whenever you cast an avatar gain five life and
draw a card.
Sacrifice a avatar: All avatar's gain either
hexproof or indestructiblity until end of turn.