This build relies on the synergy between her 1, 3 and 4. Use them in that respective order and ignore the second ability. Ensure you always have your invisibility up and you don't need survivability mods! Your other buffs are nice for extra speed in movement, multishot and melee damage. Your 1 draws fire and keeps putting out more damage the more it gets shot, for as long as the ability is active. This scales indefinitely, meaning that higher enemy damage on the orb means higher damage done to the enemy. Your 4 boosts the damage of your 1 and all other types of damage done by you and your squadmates. You can see the potential here; draw enemy fire while staying invisible, let them charge up the mallet and they'll basically kill themselves.

This build makes use of both [Primed Flow] and Arcane Energize due to it being low on efficiency. This could feel like overkill though, but removing [Primed Flow] brings the energy down to such a level that you can't even cast your 3 and 4 with full energy, so this is a necessary evil. If you don't have an Arcane Energize, you might want to raise your efficiency by replacing [Stretch] with efficiency mods. However, if you get to know the timing of casting your abilities and you pick up the orbs, you could definitely run this build without Arcane Energize, but it just helps a lot (and your team will love you too for the extra energy they receive)

The second arcane is empty because that's up to your personal preference; you don't need survivability arcanes, so pick something that enhances your weapons in any way you prefer. I would probably pick something like Strike or [Rage].

For songs, do whatever you like or use the meta 'full mandachord' song, as long as you know the rhythm well enough to trigger the buffs.