Actually, not a lot of characters have tier 1 powers in tier not 1. The masadaverse people who do are either avatars of tier 1s or about to become tier 1, and in 40K Kharn just has the backing of a legit tier 1, even then it's not the full extent of his power, and GEOM is another avatar case, as well as being an anomaly in general. Having an instakill erasure isn't even super broken considered how people have stuff like that without even getting into tier 1 hax. Yvraine, to my knowledge, doesn't actually have tier 1 deathhax since what she did used a ritual she can't exactly just replicate whenever. As for DC, the only ones I can think of are Jill presto, who is a tier 1 usually, qnd cain who already is unusable so not much changes here. Really the only problematic case I see is 1440, since this gives him 1B everything as opposed to just AP and hax, but whatever. Just put him against 1Bs then. I feel like a lot of people forget incap is still a thing, and a lot of these regenners can just be constantly killed for about a day or so with no chance for them to act for an incap. In general, I don't feel like this was as needed as speed equal stuff. While that's inevitable due to how speed discrepancy affects far more people, the characters affected by this already generally were only put against people who could deal with their tier 1 stuff, with the exception of 1440. Overall, I'm all right with this