Explosive Concoction PoE POB Path of Building Numbers are HERE
Path of Building for PoE Explosive Concoction first draw, Explosive Concoction POB, Poe Explosive Concoction possibly best gemlinks
In Video I forgot to mention/uncheck the All flasks (Ruby/Sapphire/Topaz) which lowers the DPS significantly, but you don't need to attack as often with a 200k Ignite, so it might be possible to sustain that dps.
Dans tree with slight modification:
https://pastebin.com/GriBgpWF