And now, i know why i get a lot of commendations using my tanks on dungeons.

Mark? lost aggro? wtf

As warrior, start a pull, flash and overpower x3. You can go to take a coffee and the mobs still hitting you.

As paladin, start a pull, flash + skorn + flash, and spread halone combo between mobs and repeat using flash.

Spread dots is only viable on a few class, SMN and SCH(obviously), BLM(get proc thunder) and BRD(get proc bloodletter). The rest of class, focusing one mob or differents must die soon unless your dps is undergeared.

As blm, is a waste of time, cast a fire I and watch how the mob die and your spell is interrupted. Focusing one unique mob, you can explode your dps killing it.

As drg, put up your dots and buffs, and at final moment, when you can do a lot of damage over the target, he is gone.

Btw, there are theorycraft and you may not be a braindead, you must study your group, know theirs weakness and strenghts. If you see a tank don't use flash/overpower on theirs rotations, don't use aoe and change the objetive of your damage if you are getting enmity so fast.