Artifact - Idle Battler

Working on a new take on a multiplayer idle battler

Players will choose a artifact and it's stats will be conveyed to whatever NPC it possess, as your artifact grows in strength your ability to take on harder enemies increases. Unlock better NPC's to carry your artifact as you grow in power.

Not bad idea, eager to see where you take this project! 
What will be the story?

Captured within a artifact your essence waits and watches. With every possession you gain experience and power, and as you grow your influence over the world will grow as well.