Lodestone is super OP. However, its not a guaranteed drop from key chests so its not overly saturated unless a clan has a stockpile of them.
I just dropped 30ish kills last night and over a dozen assist kills and the majority of those were me and my crew lodestoning. 2- 3 hits and the enemy cant do anything, its pretty gnarly. I prefer this over 1 shot crom swording but yea, its probably the best weapon in the game currently.