Hatchling,Seeker of Lost Stars

Hatchling, Seeker of Lost Stars gets +1/+1 for
each color among other legendary permanents
you control.
{w}{u}{b}{r}{g}: Search your library for a legendary permanent card with mana value
less than Hatchling's power, put that card
onto the battlefield, then shuffle.
"The future depends on the past, even if we
don't get to see it"