swanna -> mid b
too unreliable, frail, weak to sr. it hits hard but not /that/ hard so should be demoted

gorebyss -> top b / low a
sets up on common walls, mainly metang and alomomola. still very dangerous and not as prepared for anymore. a lot of people use jynx to check it and die to signal beam

shiftry -> top b
mandibuzz sucks and this thing would be like a rank if not for it but it still does a lot of work and has like barely any counters

volbeat -> top c
weather is not that good and it sucks outside of providing weather support.

zebstrika -> top c
this thing is really weak and frail. all it has is speed but it doesn't really revenge kill anything notible in the metagame that other pokemon don't.

combusken -> mid b
a lot of teams lack good counters to it and it can quickly overwhelm the opponent with its speed while not giving a fuck about kangaskhan revenging it. it is similar to swanna in that it hits really hard but misses a lot. the eviolite swords dance set has decent bulk and can hit hard as well if left unchecked.

simisage -> top c
doesn't really have a niche compared to the other simi bros due to charizard being in the tier. it is sr weak, lacks useful resistsances, and really frail.