Dungeons are a good way to make some fast artifact points and some loot.
Grab a team of 2 or more players and go kill monsters, boss's and level up your artifact power.
They are located west of the TP room and to the south. Once you enter one and complete it youll be issued a talisman of which is records your scores. and gives you harder dungeons. This can be reset as you choose to However you receive less rewards for lower levels.
Jump in a dungeon and try to beat the high scores!
In time i will upload maps of the dungeons with boss locations