Saffron

Colorful (This creature has all colors and enters the battlefield with a +1/+1 counter on it for each different
mana spent to cast it.)
You may exile noncreature, nonartifact spells
from your hand for one mana of a color from
that spells mana cost and attach it to Saffron.
Whenever Saffron attacks, you may cast any one
spell attached to Saffron as if it had flash without paying for it's mana cost.