Only requires one clan or the other (Tremere or Tremere antitribu) to be played.
101020
Jar of Skin Eaters
Weapon.
The bearer may use this weapon only if it has a blood on it. Strike: 3R aggravated damage. This minion may inflict 3 aggravated damage on another minion as a Ⓓ action. Burn after either use. Any Gargoyle enslaved to this vampire may move 1 blood to this card as a +1 stealth action.
Rulings
Using the Jar action does not force the minion to strike with it if he is blocked.
Ghoul Retainer is not the bearer so he can use the Jar even if it has no counter on it.
When used as a strike, it does not burn if combat ends before it resolves (eg. if the opponent uses a "strike: combat ends").
Once in play, can be equipped from the minion it's on (rulebook action) by another minion that does not meet the requirements.
The action provided by this card is considered to be an action requiring the listed clan/sect/capacity/title (e.g. the action provided by Open War is considered an action that requires an Anarch, the action provided by The Gate of Acheron is considered an action that requires Hecata).
The action provided by the equipment to the attached minion fizzles (resolves successfully for no effect) if the equipment is not attached to the acting minion when the action resolves unblocked.