Wrath of the Spire

Choose an order for creatures, planeswalkers and opponents. Wrath of the Spire deals 2 damage to each player or permanent of the first type, 3 damage to each player or permanent of the second type, and 4 damage to each player or permanent of the third type.
At the beginning of the end step, Scry X, where X is the number of permanents put into graveyards this turn.
By fire be purged!