Quote Originally Posted by RichardButte View Post
Tanks: Constantly run through your rotation to maintain aggro and the best mitigation you can.

DPS: Constantly run through your rotation to do the best damage you can.

Healers: Let regen tick on the tank (who's taking a trickle of auto attack damage from the boss) while you either press your few DPS buttons, or conserve mana in case a DPS screws up and gets hit by an AoE.
Oh I love this game let me try

Tanks: Monitor aggro and use emnity as necessary, stance dance when safe, use defense cooldowns as needed, abuse ults to cheese key mechanics, spot heal (pld), check team positioning, check boss' rotation, grab adds, handle designated tank mechanics

DPS: Monitor aggro and use anti-emnity, use defensive cooldowns as necessary, spot heal, check positioning, check boss' rotation, nuke adds, handle your designated mechanics.

Heals: Fix owies and DPS when you can

Don't trivialize the other roles.

Quote Originally Posted by RichardButte View Post
Healing is a guessing game...
No. It's a memorization game. If you know the fight, you know when busters are coming, when you can and cannot DPS, and how much mana you can get away with.