best sigils for a support-based engineer?
Not sure about choice, but if you focus almost exclusivly on kits, then you wont see anything out of your sigils sadly.
With the current condition of engineers, your best bet is putting a stacking sigil on your pistol or rifle. Before an enemy dies, switch back to your pistols or your rifle so that you’ll get the stack bonus for the kill. These bonus stacks stay on you when you swap to your kit, so they’re the most beneficial.
Don’t put 2 stacking sigils on your dual pistols or pistol/shield, as only the primary weapon’s stack will work.
If you want something that might help you if you swap kits a lot, then Strength would do well. The might buff stays on long enough for you to switch to a kit and use its effect with at least 1-2 shots.
Loudmouth, lousy PvPer, and mediocre PvEer.
I don’t own, I just play
Also note that the sigils that give things like 20s of might when you switch to the weapon do not currently work for ENG
Superior sigil of water doesn’t heal for that much at the moment… Are you trying to support with elixirs, elixir gun, bombs/heal? Also, whether you use rifle or double pistol might play a part in what sigils you could use. For pure support I think the best options would be superior sigil of life (Extra healing power per kill) or superior sigil of frailty(30% chance of vulnerability on critical).