meanwhile:
Old Mineshaft seems mostly fine. the mostly is because i assume that's supposed to be "an exit" and not them looking for punctuation.
Destroyer - don't worry about length, that's what the wiki is for. literally had a 4 post one done before in the last topic which really made that decision an easy one to make. yours seems to actually be pretty detailed and her power's really, really interesting. even though she's got just 1 power there's few things that good, but... i do have to ask on the limits a bit. technically by what's written, she can seal oxygen out of the air and have people breath in almost pure nitrogen. the oxygen may 'resist' it, but is it too much to resist? and how would that differ from your hole in the ground example? you can leave this to 'interp!' if you want, just pointing out where the questions will go. you mentioned she can't seal off organs because they're active (good), but i just wonder how that goes. personal interp reading from that makes me think that the seal has a harder time with things that are active for longer periods of time (e.g., breathing or heartbeat) and that's gotten from her eye sealing (your eyes are frequently being closed, therefore the resistance is weaker). as a result, this blocks her from messing around with stuff like air, without getting TOO overly scientific. light would be a more interesting one - sealing the light over an opponent seems like it's doable because even though it's active NOW it isn't always and depending on what or when, may not even be for a long period of time. of course, it being active at all may be enough to resist (while blinking is constant interruption of sight, light is a constant stream).
mostly just wondering on the limits of the mechanics. you've shown that be used in a lot of ways, but it's somewhat unclear in what ways the limits exist. don't have to be specific, but just some clearer understanding to what she's stuck on (besides her own body, which i assume she has full control of with her seals, despite being aware) can help.
but again, a good amount of that is interp. if there's any specific ways you're after, feel free to include it.
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"Maybe it's a tentacle, molesting the planet itself. - Aschen Brodel.