The Duality of Dichotomy
Master Order and Lord Chaos are Eternity's primal forces that will stay till the end of time. As their name suggests, they govern chaos and order throughout the omniverse.
The In-betweener is a creation of Chaos and Order.
Their universal aspects can "dichotomize" beings even with the infinity gems.
In their true form, their attacks are pure metaphors and ideas.
In the newly forming eighth multiverse, they were able to kill the avatar of The Living Tribunal and then structure the heirarchy of the multiverse by fusing with each other and the In-betweener. (however, the reason they were able to "kill" the aspect of TLT in the first place was because the heirarchy was still forming in the new multiverse and every cosmic being were equally powerful. Another aspect of TLT is later seen judging Chaos and Order anyway at the end of the series.)
The newly fused Chaos and Order, now known as Logos, kills the true Celestials.
