>>12744526They will prioritize super effective moves if they got them and if they know your type has an advantage they will swap to something that has a move to counter you generally.
Just did Clay on my second playthrough and it was a breeze due to my team setup. Gaston as opener, took out hippodwon and had rain dance to stop sandstorm so excradrill would have no sand rush advantage, swapped to Lola for Golruk and Krookodile and let Gaston take out the excadrill with drain punch, his seismitoad with grass knot and nidoking with muddy water.
If you get a horrible team beforehand this gym can be a right dick, probably one of the worst gyms of the 8 if the team you got given is poor.
>>12744676My first run through wiped at the first ghetis fight in the chasm on challenge mode, I need to make up for my failure. Especially because I was given strong as shit pokemon that run and got them killed due to poor decision making.