When Coalition Victory resolves, it checks for the five basic land types (Plains, Island, Swamp, Mountain, Forest) and the five colors (white, blue, black, red, green). If a single land has multiple types and/or a single creature is multiple colors, it will count all those types and/or colors.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.