Eric, Risk Analyst

Roll a 6 sided die at the beginning of your upkeep:
1 - Exile up to 3 target permanents. Play the top
card of your library without paying its mana cost
2 - Exile 5 permanents you control
3 - Create 5 2/2 Black Skeleton creature tokens
4 - Tap all creatures you control
5 - Add {w}{u}{b}{r}{g} to your mana pool
6 - Exile all creatures you control and lose 8 life

If your cumulative rolls add to 21 you win the game.
When over 21, start from 0 at next upkeep.