I was too uber for Steamvaults, so...

[Monmo]

Whenever I have a problem with mana, I sit in combat. That is to say: I press X

This will make me take a crit from the next melee attack (and then I stand up). Works wonders on Attumen. Anyway I take the crit and then get healed, get mana back and gives the healers something to do. This way I can remain with my best gear on.

[Paine]

I'm a big fan of swapping avoidance gear for mp5 + spell damage stuff and pulling multiple packs of mobs. The amount of damage you can do with consecrate is so stupid satisfying and if you're running with some dps not pulling their weight, you can make them cry by doubling their damage dealt.