Ancient Souls

Create two 1/1 white Spirit creature tokens with
flying.
Flashback {r}{w} : Create a Luminous token.
(Theyre artifacts with {t}, Sacrifice this artifact:
When target creature you control without flying
dies, return it to the battlefield under its owners
control with a flying counter on it.)
BackBack {w}{b}{r} : Create a 1/1 white Spirit
creature tokens with flying and put a +1/+1
counter on each creature you control.