Hasan, The Bright And Dim

+4: Each player mills two cards, Hasan deals 1 damage to each opponent for each milled creature.
-4: Sacrafice X permanants. Gain 3 life and all opponents take 3 damage for each sacraficed permanant.
-20: Target opponent mills 18 cards. Destroy 1 permanant you don't control for each permanant milled.