I've been taking a look at Cervantes' wall game. There's lots of potential but similar challenges to SCV - inconsistency and random camera switching to throw the player off. Unfortunately we also lost 3A+B, so we've lost the best wall combo ender from SCV as well (3A+B, BBB).
The optimal combo I've found when the wall is in front seems to be 3B, 6B A+B, BBB. Easy, consistent, 129 damage.
Walls to your side is a whole other story. 3 problems in this situation:
1) Combos become character specific
2) BBB, which would otherwise be our best all round combo ender, misses in many situations
3) Most annoying, many combos become more inconsistent or plain don't work on 2P side. This must be a bug!
It becomes really hard to pick the right combo based on where the wall is AND which player side you're on. That leads to dropped combos. I'm trying to find BnBs to deal with that.
Anyway, after some time in the lab heres the best I've found so far.
Wall to your left:
3B, 8A+B, bA W!, 3B, 8A+B,2A+B (90-95 damage)
There are a few ways to extend this, but they become inconsistent depending on character, positioning etc. The second 3B almost never launches when you're on 2P side, so you get 70-79 damage. At least this way you don't have to worry about changing your inputs, you'll always get decent to very good damage.
I used to end with a BBB instead of a second 3B, braindead easy and works every time - except on 2P side where it misses 80% of the time!
Wall to your right:
3B, 8A+B, 66A W!, 3B, 8A+B, b2 W!, BBB (105-107)
To get the b2 to wall hit you need to buffer a side step towards the wall after the second 3B. As soon as Cervantes moves the slightest amount (pixels) hit the b2, or you'll be too late. Even if you don't get the second wall hit, it's 99 damage. The camera loves to pick a random direction to face after the b2 but you're ending with BBB, so you don't drop the combo.
Again, the second 3B doesn't launch on 2P side. So annoying! You still get around 79 damage though without having to adjust mid combo.
TLDR
Best all purpose wall combos I've found so far for a balance of ease, damage and consistency.
Wall in front:
3B W!, 6B A+B W!, BBB 129 damage.
Wall to your left:
3B, 8A+B, bA W!, 3B, 8A+B,2A+B (90-95 damage 1P side, 70-78 damage 2P side)
Wall to your right:
3B, 8A+B, 66A W!, 3B, 8A+B, b2 W!, BBB (105-107 1P side, 79 2P side)
If anyone finds situations where these don't work, or has any ideas for improvements, I'd love to hear them.