>>535608309
No, anon. Most builds just put in a few defensive flasks and quicksilver and use when full + a life flask. They just have them up while mapping and they do nothing while bossing. Sometimes you use a tincture instead of one of the flasks and press it for bosses.
Then you have MB, where flasks basically cap your suppress, crit, resists, give insane MS, etc.
You also have traitor builds, as you said, with coruscating elixir
Then you have pathfinders with tides of time to have infinite flask uptime with progenesis and possibly a life flask giving like 10k regen per second.
I think they're interesting, but they are clearly overpowered in PoE1. I DO NOT LIKE CHARMS, so don't say I am shilling for this. I just think they did not balance flasks correctly. MB is too strong (but the game does need chase items and I don't think it should be nerfed at this point) and PF with tides of time can be too strong too.