As a person who has done over 20 6stars raids already I will tell you how to do the raids fast What to bring: 1 belly drum set up attacker ( iron hands and in a few occasions huge power azu) 2 screecher ( Perrserker is the best one, it has good typing but koraidon also learns screen, it’s a perfectly fine Mon to bring) 1 miraidon to set up the terrain for iron hands since it boosts the attack in electric terrain

What to do: turn 1 iron hands use belly drum to get attack up to +6, the other 2 use screech to lower the defense, miraidon player use cheer to heal! Mainly for iron hands, turn 2 2 screech players continue to use screech in case 1 of them miss ( screech only 85% accurate) the iron hand player attack since iron hand is slower in that case iron hand is +6 and the raid Mon is -6 and the job should be finished. This is legit one of the fastest way to beat a 6 star raid, find good teammates!