Exterminator aura

[Elec]

Exterminator aura need some change.
This aura is too small to show its skull itself even from my own character and other effects.
The color isn't dark/clear enough show itself through background.
And on top of these, this aura will be shown underneath most of other aura so it's completely not visible when playing with other players.

Please make some changes on this aura.
This could be better.