This is a pretty obnoxious raid, and there are very few reliable pokemon that can be used against it. The massive HP and the THREE player resets are just stupid. I have personally been using Archaludon mostly, simply because Stamina makes it so much easier to set back up after the resets. Everything else is just too slow to deal with the player resets. But I have played with almost everything else mentioned in this thread with varying degrees of success.
For online play, this Bax raid is farmable, but you have to re-enter lobbies a ridiculous number of times to get a team with 4 viable members. I have found that most of the time even 1 bad pokemon will ruin the raid, because all the other mons have to spend so much time setting up after the frequent resets that the bad players just have too much time to faint. And with bad players on the field, even with the rest of the team debuffing Bax all to hell, it only takes one crit to delete the bad players usually. So with that in mind, these are the only mons that I trust in the lobbies of online raids:
Archaludon
Avalugg
Orthworm
Those three are pretty common and can usually be trusted to at least not die so frequently and ruin the raid. I also am willing to go with a team if it has these mons, but I don't see them much:
Lapras
Forretress
Everything else is almost literally an instant cancel and re-enter the lobby for me. That doesn't mean every other mon is a loser, it just means that every other mon can't be trusted at all in the hands of the players that are bringing those mons to this raid. I have been pleasantly surprised a few times, when i get tired of resetting the lobby for 15 minutes and finally decide to give it a shot with a team with 1 sub-optimal mon. But usually when I do that, I wish I would have continued resetting, because this is a very, very long battle. Losing the battle and then having to re-enter and reset repeatedly until you get 4 good mons, that cycle wastes far more time than it would take to simply continue resetting until you get the four the first time. It's just not worth it to give it a shot with anything other than the mons I listed above.
In my humble opinion, of course....
For online play, this Bax raid is farmable, but you have to re-enter lobbies a ridiculous number of times to get a team with 4 viable members. I have found that most of the time even 1 bad pokemon will ruin the raid, because all the other mons have to spend so much time setting up after the frequent resets that the bad players just have too much time to faint. And with bad players on the field, even with the rest of the team debuffing Bax all to hell, it only takes one crit to delete the bad players usually. So with that in mind, these are the only mons that I trust in the lobbies of online raids:
Archaludon
Avalugg
Orthworm
Those three are pretty common and can usually be trusted to at least not die so frequently and ruin the raid. I also am willing to go with a team if it has these mons, but I don't see them much:
Lapras
Forretress
Everything else is almost literally an instant cancel and re-enter the lobby for me. That doesn't mean every other mon is a loser, it just means that every other mon can't be trusted at all in the hands of the players that are bringing those mons to this raid. I have been pleasantly surprised a few times, when i get tired of resetting the lobby for 15 minutes and finally decide to give it a shot with a team with 1 sub-optimal mon. But usually when I do that, I wish I would have continued resetting, because this is a very, very long battle. Losing the battle and then having to re-enter and reset repeatedly until you get 4 good mons, that cycle wastes far more time than it would take to simply continue resetting until you get the four the first time. It's just not worth it to give it a shot with anything other than the mons I listed above.
In my humble opinion, of course....