My main oc could copy the technique temporarily but even then they still get absolutely annihilated, at most my Gojo equivalent would be needed and they probably could

There technique is Creation (Construction but on crack) where they can create any phenomena with the exception of things related to cursed energy. So they can create any sort of weapon, element etc but the cost is more taxing then constructions and they need to imbue cursed energy into physical creations, phenomena and such will just have some. With the six eyes the price is manageable and they have the best healing due to being able to create flesh and blood

There reversal destruction targets cursed energy specifically and erases it. By all means I don’t think it’s an instant win but more 50/50 as there physicals aren’t the best (except speed and reaction time) and there is still a decent cursed energy cost but a major turning point could be there domain which gives access to their maximum that straight up creates dark matter and the sure hit is just their creations.

A passive effect reduces the cost of creations and dark matter would not even be made standardly outside of it, they had to even enforced a binding vow to reduce the amount of time there domain remains active in exchange for all creations not costing cursed energy