AST cross-skills and Aero

[Elth]

It's a cheap spell that has 200 potency. It's a basically Malefic II with a lower cost but the trade off is its a DoT.

Which is basically what I said in my first post. But considering the fact that most Savage encounters are made of short phases of burst between downtimes (causing a probability to waste SOME of the DoT's potency), is it worth using at all, just to cast a Malefic 2 overtime for 200 less mana every 18s ?