Obviously that guy wasnt very good. If he was smart he would have switched into Gardevoir turn 1 and forced you to go into arcanine or venomoth, if venomoth go into skarmory and get some hazards up, if arcanine go into dragalge and predict something. That was very poorly played on his part. He also could have gone from arcanine into jellicient and set up his trick room(?) so that dragalge could get some kills. Uhh also he killed off his skarmory for no reason.

Also your whole team gets destroyed by rocks with the exception of cobalion.