Calliope, proclaimor of heroes

{1}{w} Skyfall - For every {b} in both graveyards, add {w} to be used this turn.
{1}{w}{w} Someone Like You - Create a token that's a copy of a Creature you control. The token and the Creature gain a +1/+1 marker for each {g} in both graveyards.
{1}{w}{w}{w} Set Fire to the Rain - A creature you control gains +1/+1 for each {r} or {u} on the battlefield until the end of turn.
—
"That was a Million Years Ago." - Unknown singer, 2015