Armor (shield), varies (requires attunement by a Sacrificing 1d6 of health of the user)
The shield is a silver in color shield with a bronze trim with the very center of the shield being a black star with black lines implying something being sucked into it.
Shields require the Utilize action to Don or Doff. You gain the Armor Class benefit of a Shield only if you have training with it.
Notes: Sacrificing 1d6 of health of the user, Combat, Warding
You should add the curse tag unless this is meant to be anything more than a cursed shield in which case you might want to add a bit more detail.