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 Sisays power, put that card onto the battlefield, then shuffle your library.

• Rarity:R
• #:29
• Card Type:Legendary Creature Human Soldier
• P / T:2 / 2
• Casting Cost:2W