The Rainbow Railgun:
Step 1: Obtain Bifrost.
Step 2: Traits
Arcane (1 or 2 / 3 / 2)
Air (3 /3 /3)
Weaver (1 / 2 /1)
Step 3: Take Arcane Brilliance, Sig. Fire, Arcane Wave, Arcane Blast, whateverelite you want (air elemental has some extra stun)
Step 4: Beserker’s Amulet, Scholar Runes, Sigils +5% to distant, +5% to low health
Step 5: Obliterate anyone with less than 20k health and auto invulnerabilities with this combo:
Start in Air Earth. See someone in the distance who is a high priority target.
Swap to Air / Air as you approach, granting yourself swiftness with Air 4. Attempt to cage them if needed with Air 5, OR go into your combo shortly after having switched.
Combo:
Swap Earth / Air, launch an Arcane Blast to Immobilize, RIGHT as its about to hit, you start to cast Pile Driver. Mid cast, and right as Arcane Blast lanes while Earth is still your primary attunment, you swap to Air/Earth, which grants fury and your lightning stike for the Pile Driver to hit hard.
For the follow up burst, use Lightning Surge + Arcane Blast + Arcane Wave spam immediately after Pile Driver hits to benefit from Tempest’s Defense’s 20% bonus damage.
Once you have this down, you can deliver this huuuuuuuge spike of ranged damage from 1,200 range with very little visual “tell” that its coming. You have various fall-backs when this spike misses, but its exceptionally good for bursting down Scourges, Guardians/mesmers/elementalists, but obviously fails against people with auto-defenses unless your burst lands simultaneously.
The bonus crit damage gets unreal.
