You want a lot of strength and duration. You don't need to worry about efficiency since you will be using energy pads for energy. There are better aura mods you can put in, but I use [Steel Charge] for the extra mod capacity saving myself a third forma. Use a decaying dragon key which will reduce your shields so that your health gets damaged faster to build up your vex armor. As for arcanes I use momentum for faster reloading with sniper and avenger for more crit chance. However, you can use what arcanes you have available. With this build you have about a minute of a 943% dmg boost.