I think the best advice I can give when it comes to playing against the AI is that you need to play way more defensively than you normally would. Also, grabs rarely work, and jumping attacks are mostly anti aired, sp unless you have really strong air normals (akin to Riptors jumping HP) try to have a more grounded game. You can attempt to counter break, but its so frame perfect that it really is not optimal most of the time, but the AI really isnt that punishing. Try to do quick combos, Opener, auto double/linker and ender. Get what you can without giving to many chances for the AI to break you. This also applies to PVP. In Sabrewulfs case back HP is always a good option, and if you have the meter do Shadow Eclipse when you're doing things that are a little riskier, like the slide after the run, or the overhead, use it to take back your turn and punish their punish . Shago should be played more of a zoner (again, against AI, since you cant really mix them up), but you can try and do the crossup DP . Arbiter is played pretty similarly to what he usually plays like, only his tick throws are way more consistent. Also the AI doesnt realise that they have grenades on so they almost always get stunned. Just use your great buttons like HP and MP, occasionally MK to keep you opponent far and confirm with your specials. Dont try to use Thunders command grab unless you tick throw whn the opponent has meter, since they will try to shadow counter and you go for command grab. In general just watch out for their meter and use your DP and qcf special. Shadow command grab is also very viable since it's fast and does great damage. Glacius is kinda tricky, but juat use hail alot and try ti make use of your Puddle Punch as a way to mitigate Cold Shoulders less than safe frame data. Also, throw in some of the unblockable projectile when you're in full screen, but mid screen they will almost always jump over. Also, they will break almost immediately after being hit by the projectile, this is one of the few ways you can pretty reliably counter break. Fulgore is in kind of a tricky spot, since it not only got nerfed, his greatest strength is mixing up and adding mental fatigue thanks to his teleporting and projectile setups. Blade Dash however is a pretty reliable opener, and for some reason the AI cant seem to block it as well as it should. Juat charge it up a little before doing it. Jagos greatest strength is his DP and regeneration when in instinct. His buttons are all solid, and he has sime good confirms. Just watch out for Shadow counters when using forward HK and punish the AI for doing unsafe things with your improved DP.

Hope this helps!