I think you want to use wording similar to Konda's Banner, unless you want people to be able to equip this this to tokens for whatever random benefit that may serve.

I'm also not sure this needs to provide any sort of P/T bonus, as it distracts from the primary effect which is powerful on its own, basically halving the effectiveness of your opponent's removal. Of course, people are somewhat conditioned to expect some sort of P/T alteration.

The p/t effect comes as a parallel to Nim Deathmantle. Template adjustment to follow.

From my own habit of designing overly busy cards, I can recognize Nim Deathmantle as an exceedingly clunky design, where I believe they were overcompensating for the relative awkwardness of the Deathmantle's reanimation ability. I'd take that inspiration and just make it sleeker and more efficient.

Simulacro Suit
3
Artifact - Equipment
Simulacro Suit can be attached only to a nontoken creature.
When equipped creature dies, put a token onto the battlefield that's a copy of it.
Equip -

Note: As a "suit" and not a "staff", I feel it better fits the semi-comical retro-futurist vibe of most of your equipment. I imagine a full-body spandex outfit that processes your dead body and molts away to reveal a soulless doppelganger. You could say it comes with a "life-back guarantee".