Harmonize

Corrupt deals damage to any target equal to the number of Swamps you control. You gain life equal to the damage dealt this way.

Draw four cards.

Look at the top three cards of your library, then put them back in any order. You may shuffle. Draw a card.

Destroy all creatures. They can't be regenerated.

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

Counter target spell unless its controller pays 1.