Eternal Radiance

Flying, Trample

As long as your devotion to any color is less than 5, Eternal Radiance is still an enchantment creature.
Whenever Eternal Radiance attacks, you may pay {5}. If you do, add 10 mana in any combination of colors to your mana pool.
{w}{u}{b}{r}{g}, create an X/X flying dragon creature token that is all colors. Its power and toughness is equal to the highest devotion among colors you control.