Byleth, the Goddess Awoken

Byleth, the Goddess Awoken is all colors.
As long as you control both Byleth and her Honorbound, they have indestructible.
Honorbound (At the start of the game, if this
creature is your commander, name another creature
with Honorbound. When this creature enters the battlefield, you may search your library for the named creature and put it into your hand.)