Aaron, Fun's Bane

+2: Counter the first spell each player casts on their next turn. If a permanent spell is countered this way, scry 2.
-3: Until your next turn, your opponents can only cast spells whose mana cost is less than or equal to the amount of untapped lands you control.
-10: You get and emblem with "All permanents your opponents control lose all abilities and card types and become 1/1 colorless creature tokens."