Jeffrey Hung Yeah, it's a bit of a "scum" tactic, but it can work out sometimes. It can be Counter Assaulted/Overdrive Raided, though. It also loses to late roll tech, so it's real limited/situational, in terms of usage.
Foreversouth0 Haven't tested all of them, but so far it works on everyone. Problem is, it needs to be off a fatal starter and somewhat early in a combo, have been knocked down (for the pick up), and hit real low. You have to do a low down 5B > slight delay 22C, if you do 22C immediately, it whiffs and they tech.
If you're talking about the ones done in the CMV specifically, it's just how training mode works. If you set P1's HP to, say, 50%, it won't be able to go higher than that, no matter what. He's technically still gaining life from life stealing moves, but it won't show, due to that particular mechanic