She's never really shown that level of luck manipulation. Plus, her powers adhere more to personal good-luck, as opposed to open destruction. It's more likely, for instance, that she'll always hit her target with a bullet, rather then one of their tendons randomly breaking, or the arena spontaneously combusting.
The only edge she'd have in this battle would be the physical edge, and its not enough to give her a majority.
I thought he luck manipulation was more along the lines of she had to take action in avoiding something for it to work. Like lets say someone shoots at her and she moves, it will just so happen each bullet slightly misses her but if she was to get shot at and not react, well it wouldnt work to her advantage...I could be wrong tho..
No, thats generally right. Though, it doesnt always hold true. For instance, a gun has faulted point blank without her attempting to do a damn thing... but thats generally why her powers are more of a benefit to her and not a danger to her opponent.
Good luck powers don't necessarily require an environment to work. That just makes the fight sweeter.
If her powers work like Black Cat's bad luck powers did, Domino could have Lady Shiva trip, throw an awkward punch to lose her balance, or get some dirt in her eyes.
Her powers specifically guide her movements. This gives her a few superhuman stats, and makes her damn hard to hit. And, sometimes they work specifically against her opponent, though this is rare. However, in a battle much similair to this one, Dom lost to Deadpool, till she pulled out a gun. And she doesnt have guns for this battle.