Echo, the Lost

Myriad
When this creature dies, create a token
called Memories (its a legendary artifact token
with {t}, sacrifice Memories: add {w}{u}{b}{r}{g},
use this only to cast human creature spells.)
{b}{g}: Regenerate Echo, the Lost
I hope you find your answers one day, my friend.
Good luck on Tin Street.
—Parting words of Emmara, Selesnya druid.