hello i am new to dos i usually play as a tank i was just wondering are dots a must?

[Arkenne]

For example, Mutilate starts at 18 seconds. It does 30 potency per tick.
You could say it gains 30 potency every 3 seconds then, and at 18 seconds it's 180 potency.
It also delivers 60 potency on-hit, so it's good for 240 potency in total.

Had to step in for this one :/