Made this build for my Siren. It's a lot of fun when you phaselock into a room full of mobs (trick, start by targeting a weak mob, not a badass). When it hits it pulls everything together and sets them on fire. When the first target dies it releases all the healing orbs, jumps to another target and explodes/pulls again. This goes on until phaselock runs out, then 10 seconds later you do it again.
If you don't need/want the healing, sticking 5 points into Minds Eye instead of Sweet release makes this build OP for Cat mods
It's also great with a Binder mod (yea yeah, no reaping) or Witch (can take one point from suspension to kinetic deflection). But Cat really shines when you get the increased damage during phaselock, you can burst down the mob in the air and have it switch to more targets for the duration.
I've been using this with a wicked Plasma Caster (big base damage, big clip)