Healer! You are doing it wrong!

[Dyrstahl]

You can always tell the players who have never touched other classes. As a player who actively plays as a tank and healer, I see from both sides what happens, so I can adjust accordingly when needed.

I played Marauder & Conjurer up to 25 at the same time and I think it helped me gain perspective on how to behave in dungeons. Playing as a healer gives a tank a hint on how much mana heals and esunas cost, the potency of the spells and so on... Likewise playing on a tank gives you perspective on how effective tanks hold enmity (and more importantly initialize enmity).

Or I'm just a natural talent.