Doesn't Weld absorb anything metal he touches? Is that not enough to be called a weird Breaker ability?
As Spectral Waltz noted, most Breakers
change states, and that's an important part of it. Like, here's Wildbow talking about Scrub of all people:
22:10] <Lexicon> Oh, wait, breaker makes sense for Scrub, too. I'd thought of that before, but I'd never connected the two lines of thought.
[22:14] <~Wildbow> I had scrub down as a shaker, not a breaker. He's always on, so to speak
Again, remember that it's not very precise, and it's from the perspective of people fielding PRT agents to take them down. So, Purity is a Breaker because she has to change modes to blast people. Velocity is a Breaker because he interacts differently when he's going fast. Acidbath is a Breaker because he can literally turn into acid.
Weld interacts with the world weirdly due to the whole "absorbs metal" thing, but that's the sort of thing that isn't necessarily important enough to give its own classification/rating, because, again, PRT classifications are purely for the sake of planning operations against parahumans. They are
threat ratings. Absorbing metal is kind of weird, and kind of annoying, but it's not a threatening part of approaching Weld. The threatening part is that he's made of metal, he can hit like he's made of metal, he can
take a hit like he's made of metal, and he can change into different shapes, making him a little less predictable. The "absorbs metal" part would just be a note that's put in the larger description of his abilities.
I feel like I may have come across a little condescending by repeating so much that the classifications are for the sake of PRT teams, but it really is super easy to forget. Everyone seems to want to use the classifications like they're scientific, like everything should be labeled as completely as possible, but that's just not what the system is for.
