Rebrim, Chieftain of Arcana

Dreamcast, Prowess, Trample
You may spend mana as though it were mana of
any color to cast instants and sorceries.
{w}{u}{r}: Untap each creature you control with dreamcast.
"I have seen the infinite wonders of the Dreamscape,
and I will give all that I have to ensure my people see
them too. Even my life and all of my magic."