Otherworldly Chaos Essence

 is a catalyst which can be used in the process of upgrading the Worn Chaos Lord's Cloak of Omnipotence available from content in the Justice League Dark episode.

Obtained from

 * Shattered Gotham

Trivia

 * 1 is neccessary to breakthrough to rank 1 of the Worn Chaos Lord's Cloak of Omnipotence.