Im pretty sure this idea has been mentioned before but I thought I would bring it up again with a few changes because It would be a really cool kit.
Armour:
Helmet- Wither Skeleton or Skeleton skull
Chestplate- Protection IV Unbreaking X leather dyed light grey
Leggings- Protection IV Unbreaking X leather dyed light grey
Boots- Protection IV Unbreaking X leather dyed light grey
Weapon- Bone with Sharpness VIII (8)
Ability- Every 45 seconds can spawn 2 ghouls by right clicking bone which are invisible skeletons with a grey unenchanted chestplate and Sharp V Bone and a Ghost Player Head
Potion effects- None
Feel free to edit or change anything about my idea :)