I was hoping this thread would get made. I was hoping to get WW's Matchup Discussion Thread unlocked since the game is released, but maybe we can move this to that once it's opened.
Knowing how to play against Deathstroke for every character is going to be a real priority. I think Diana has a lot of really (really) good tools against him though (as well as zoners in general). The more ways a character has to get in on Deathstroke, the harder it is for him to keep them out, and WW has a lot: 1) air dash, 2) in-air Amazonian Punch, 3) divepunch, 4) Bracelet Parry, 5) Jump + air down Tiara throw, and 6) the universal dash + block (Note: Remember Sword and Shield Stance reduces/prevents chip damage). Using these things in combination is the key to getting in. Air Dash is the best thing ever, as it can cover a ton of distance very quickly and allows for cross-up and combo opportunities. You can also divepunch after airdash. Amazonian Punch can be done at any height off the ground and is really fast - I use this a lot as well. Just don't be too reliant on getting in through the air. Get in training mode and spam Deathstroke bullets and find a variety of ways to get in.
Where I need help is playing against Aquaman. Any suggestions/tips/strategies are greatly appreciated.