Henrik, Black Chaos Magician

Your deck may contain cards with any
coloridenity, however no colorless cards except
for swamps.
In your upkeep roll a dice to decide what kind
of mana all your lands produce untill your
next turn. 1-W, 2-B, 3-U, 4-R, 5-G, 6-everything.
If you tap a land for mana, it produced twice that amount instead.
Never trust a black magician, not even yourself.