Sisay, Weatherlight Captain gets +1/+1 for each color among other legendary permanents you control.
WUBRG: Search your library for a legendary permanent card with converted mana cost less than Sisay's power, put that card onto the battlefield, then shuffle your library.
Near Mint - $2,000
Lightly Played - $1,600
Moderately Played - $1,400
Heavily Played - $1,200
Damaged - $1,000
Near Mint Spanish - $2,000
Lightly Played Spanish - $1,600
Moderately Played Spanish - $1,400
Heavily Played Spanish - $1,200
Damaged Spanish - $1,000