Pressure time! I think the mons we choose here are crucial since we need this mon to force switches to support the team, and if it can do that well, then it's well on its way to being a success.
I think it goes without debate that every steel type in the metagame should be at least slightly threatened. This includes things like Equilibra and Excadrill who are probably going to be able to do a good chunk of damage to us back. The way I see it is that (without polljumping) can probably give CAP27 a way to put pressure onto these mons. Equilibra should be pretty spooked in general given it's slow, but Excadrill, may be a bit harder to deal with and will likely become a stats issue, so I'll just leave it there. Otherwise, I think things like Jirachi, Bisharp, Aegslash, Ferro, and Cawm all should fear us switching in. I think the only Steel type that SHOULD be able to live a hit from us is Naviathan per a typing basis.
Aside from Steel Types, I think other dragons should also likely fear us, barring maybe Dragapult (again on a speed basis). We should be able to threaten Hydreigon, Cyclohm, Dracozolt, Kyurem, Pajantom, and probably Kommo-O solely based on our STABs alone. Dracovish might be a bit of a grey area, since we would probably care about the set, but I'm in the camp where Dracovish is probably afraid of CAP27, but not overly so depending on how much damage CAP27 has taken. Basically with most of these Dragon types, it really comes down to who will be hitting first IMO, and from that it basically implies that these Dragons aren't going to be outright switch-ins the way things specific water types will.
Aside from those, it's pretty clear most Grass Types aren't going to want to stay in when we're on the field. The elephant in the room is Jumbao, as I think that while it gets Fairy stab to maybe put us in a little tricky spot, CAP27 should be able with with its Fire STAB. There's also Pyroak which could maybe be annoying to actually take down, but I can't really seeing Pyroak beating this mon outside of Toxic (which idr if it gets these days). Also similarly to Grass types, I think the lone good bug (aside from Clant, we'll cover that guy later), Aurumoth should be pretty threatened by this thing due to a lack of moves.
Now for mons on a case-by-case basis:
I think it goes without debate that every steel type in the metagame should be at least slightly threatened. This includes things like Equilibra and Excadrill who are probably going to be able to do a good chunk of damage to us back. The way I see it is that (without polljumping) can probably give CAP27 a way to put pressure onto these mons. Equilibra should be pretty spooked in general given it's slow, but Excadrill, may be a bit harder to deal with and will likely become a stats issue, so I'll just leave it there. Otherwise, I think things like Jirachi, Bisharp, Aegslash, Ferro, and Cawm all should fear us switching in. I think the only Steel type that SHOULD be able to live a hit from us is Naviathan per a typing basis.
Aside from Steel Types, I think other dragons should also likely fear us, barring maybe Dragapult (again on a speed basis). We should be able to threaten Hydreigon, Cyclohm, Dracozolt, Kyurem, Pajantom, and probably Kommo-O solely based on our STABs alone. Dracovish might be a bit of a grey area, since we would probably care about the set, but I'm in the camp where Dracovish is probably afraid of CAP27, but not overly so depending on how much damage CAP27 has taken. Basically with most of these Dragon types, it really comes down to who will be hitting first IMO, and from that it basically implies that these Dragons aren't going to be outright switch-ins the way things specific water types will.
Aside from those, it's pretty clear most Grass Types aren't going to want to stay in when we're on the field. The elephant in the room is Jumbao, as I think that while it gets Fairy stab to maybe put us in a little tricky spot, CAP27 should be able with with its Fire STAB. There's also Pyroak which could maybe be annoying to actually take down, but I can't really seeing Pyroak beating this mon outside of Toxic (which idr if it gets these days). Also similarly to Grass types, I think the lone good bug (aside from Clant, we'll cover that guy later), Aurumoth should be pretty threatened by this thing due to a lack of moves.
Now for mons on a case-by-case basis: