Eh, Trigon absorbed all the power of his entire universe, has conquered numerous universeS, can obliterate planets with casual gestures, can transmute entire planets into stone, etc. etc.
Mortis or not, The Ones don't have a chance in hell.
"A great tactician creates plans.
A good tactician recognizes the soundness of a plan presented to him.
A fair tactician must see the plan succeed before offering approval.
Those with no tactical ability at all may never understand or accept the plan.
And when a mind is too deficient in understanding, the resulting gap is often filled with resentment."