So I had a run on a tier 4 Indecisive in the Desert Dungeon, and things went relatively well (splodey cacti, yay!), but on the 3 mechanized bosses (not sure if they have a name) it was impossible for me (the tank) to keep aggro. The healer and mage could keep me decursed and alive, but as soon as I stopped actively hitting one, the others would get pulled off because of the heals (most likely), which would usually make them run in the way and get a hit from the ranger, or block the decurse/heals.
I’m just looking for tips on how the hell I should be approaching that as a tank?