Pointed Discussion

I like seeing black's synergy with artifacts on its own (not with Esper)

It has a somewhat interesting synergy with Sword of the Meek.
When the Poltergeist enters, the Sword returns and makes him a 2/3.
Then in your opponent's turn you can turn the Artifact intro a 2/2 creature (which will unattach the Sword from it - you can of course use the ability to unattach equipment in genral) and sacrifice it for whatsoever.
This way the Sword can be used as additional creature saccing fuel whenever a 1/1 creature enters each turn.
And it can also have great use for destroying your opponent's -mana artifacts, like artifact lands such as Seat of the Synod, Moxes, Engeneered Explosives or Chalice of the Void.
Overall I like this guy regarding combos more than Karn's Touch.

Can be used to destroy your opponent's 0CMC artifacts like moxes.

Prototype for Karn?

My mono black creature removal deck wants some of these.

DIE Darksteel Relic!
DIE Mox Opal!
DIE Everflowing Chalice!

that art!
how come we never see it anymore in MAGIC?

Nice that this puts said artifacts in range of a lot of today's black creature removal...