Good for both team and solo from low to high index as its main purpose is survival, recast mesmer skin (#2) when it is low (Below 5 or so).
Any arcane works so put in whatever you want.
Mesmer skin acts like [Rhino]'s iron skin BUT even better, it will prevents ANY dmg (9999999 or 1, yes suck it [Rhino], this is leagues better), any status effect (Stagger from weapon, radiant debuff, etc) and stun the enemy that attacked you (Affected by dura). Just be sure to recast when it is low.
Be sure to dodge before recast mesmer skin for protection from [Rolling Guard] so you don't die while casting it. Careful with energy drain from carrying too much points, consider roll into energy orb then recast mesmer skin asap, although the timing should not be too tight as we have 135% efficiency here (Please turn in points when you have 15 unless it is only few points left for the current round, then save it for next round).
Can replace aura/exilus and enemy sense for whatever you want, this build is aimed for super fast games and loots (About 3-5 rounds then bail depend on your team or your weapons), if you are aiming for longer index games, consider bringing meta frames such as Hildryn/Khora/etc instead.