That week for Jasper-Cobalt-Jade, we switched one of dps-monk for a tank spec. He wasn't tanking, just running around activating tiles. That way he still couldn't get any Jasper Chain, meaning that him and another person was free the whole fight for tile-painting and such.
Our monk did almost no dps during the fight (only 20k), but it was much easier to gain our stacks and we beat our previous record by 20s.
Can this be considered as a viable strat? Or is this an exploit?