Destroyer is the bringer of all destruction and evil in the Omniverse. Destroyer is opposite to Creator.
History
Destroyer and Creator clashing could potentially take out the Omniverse and the two Godverses orbiting around it, even Beyond Realm, as it did during an immemorial point in time where they both battled and took out the entire omniverse, which Creator recreated soon after.
Powers
Destroyer possesses near equal power to Creator, except for the fact that Creator is slightly superior in every aspect, seeing as Creator can defeat destroyer in a battle.