Well I main Wesker so I can probably help with this a bit even though I haven’t really fought another Wesker with 23 yet. Basically you’ll want to know what Wesker is trying to do. Wesker can only really get in or hit you 2 ways unless you just sit there and let him wave dash up to you. Those two ways are through standing gun shot (which if it hits you out of the air will lead to combo) and teleport. Now…if I want to get near you with Wesker other than wave dashing towards you I have to either set it up with gun, gun/assist combo or teleport. He can teleport after he shoots any of his guns so that’s the main thing you want to worry about. Most Weskers are just going to L teleport after they shoot gun so they can get near you. Which if that’s what they want to do just jump backwards and air d+H talon dive on top of them and start a combo and gain pressure. His L teleport always goes the same distance forward relative to where he is so as long as you know that you’ll be fine. Once he commits to using the gun he can’t call an assist anymore so use that to figure out what strategy you wanna use also. This is why most Weskers will just use their assist then teleport or call the assist first, gun u then teleport.
The only other way he’s going to get in is by teleporting so its kinda on you to recognize when he’s going to teleport and which teleport he’s going to use. The only other way I can hit you as Wesker is by shooting my gun and if I do that from the air the most I’m going to get is chip damage unless you’re doing something stupid and on the ground you can easily crouch or wave dash under his gun. Which means if you start to just sit there and crouch or wave dash under my gun I’m going to have to teleport to get in. I could try to wave dash in and start a block string but if that string gets blocked I have to call assist and either re try that again and try to mix it up with command throw or just back away and try an easier get in through hoping you jump during my gun or do a H teleport and pray you dont see it and air throw.
Overall the best thing to do IMO against Wesker is just dont do a whole lot and wait for a situation to punish his L or H teleport. Wait for him to do stuff instead of trying to go after him. If you just sit there and crouch there’s not really much he can do except go in the air and gun which will only do chip damage at most and you can easily run away from. If they get frustrated with you running away and punishing their L teleports with jump back air d+H they’ll probably resort to using H teleport which acts like a slower version of Dante’s that puts them behind and above you (though it doesn’t actually track you like Dante’s either). If you can read that and air throw him or jump combo him out of that you pretty much force him to have to wave dash in and limit his options for getting in. The fact that it doesn’t actually track where you go like Dante’s means you can easily wave dash under it if you know he’s going for it also.
Wesker’s a pain if you just try and rush him down and that’s really the point of his play style. He’s an offensive character with the ability to evade offense and set up offense through defense and movement. That’s why he’s able to close the gap so quickly but at the same time if you know when he’s going to close the gap he can put himself in bad situations. You just have to play lame and force him to do a bad teleport or call a bad maximum wesker and waste meter. Which Maximum Wesker is easily beaten by a pre emptive air d+H or Talon Attack.
Last thing to remember is to just block if you’re in the air against Wesker. If Wesker shoots you out of something while you’re in the air you’re going to lose most of your life by a teleport cancel combo. Again…that’s why it’s best to stay on the ground where you can limit his gun play and then jump backwards when you feel he’s going to call an assist then teleport. If you’re crouching and he tries to to L teleport after to get close to you after shooting his gun you’ll be able to blow him up out of the recovery and hit him easily. The less you move the less he can move basically.
Sounds good to me. Remember you can also use X23’s Weapon X super to DHC into Trish’s Round Harvest super to get DHC reset and add more damage if u need to DHC into her.