Purgatory Station

+1: Create a 1/1 colorless Construct artifact token with vigilance and prowess.
-1: Tap or untap up to two target nonland permanents. For each of those permanents, you may have its controller gain 1 life or have The Thirteenth Hour deal 1 damage to that player.
-7: You get an emblem with "Tap thirteen untapped permanents you control: If it's not an extra turn, take two extra turns after this one."