The Corsair (Sixth)

The Corsair 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
The Corsair's power, put that card onto the battlefield, then shuffle.
(The Corsair counts as Sisay, Weatherlight Captain - Legendary Creature Human Soldier)