Adventuring

You may pay an additional {1}{w} any number of times as you cast Adventuring. If you do, it can target an additional number of creatures equal to the times you pay this mana. (It enters enchanting each of those creatures)
Enchanted creatures get +1/+1 and have vigilance if they're white, flying if they're blue, menace if black, haste if red, and trample if green.