Right, let me explain how MC unique power works...
He can 'Cut' any ability or power from item, armour, and so forth as long as it's not related to someones else cultivation, that include the curses as they are not related to cultivation.
(like a cork on the bottle which can be taken off...)
'Paste' is self-explanatory he can paste what he cut on items or people...
Now 'edit' is most used by him...
for example...
'Curse which affects people who are of Phoenix bloodline'
He can edit into something like :
'Curse which effects person mind upon pill digestion.'
He can't change the 'core' effect...
His powers can't change physical items.
Now this power is quite OP.
But my MC prefers his Formations, over this power, because of sheer use they have.
Another thing is he can't use this power on Heavenly treasures as they are created by the world (Dimension) itself.