World-Crusher

Suspend 40 - {0}
Whenever a spell is cast, remove a time counter from World-crusher
Whenever a permanent leaves the battlefield, remove a time counter from World-crusher
When World-crusher enters the battlefield, deal 9 damage to each player, Exile all permanents, Each payer exiles both their hand and their graveyard, each player exiles the top 20 cards of their library, and draws 7 cards