Spear of Longinus text:
If you're a Hunter and your attack is successful, you may reveal your identity. If you do, or if you are already revealed, you give 2 points of extra damage.
If a revealed, non-Hunter has the spear do they inflict the extra damage?
I think the intent of the card was probably to only benefit Hunters, but it could be read as any revealed character using the spear gives the extra damage. But, only Hunters would get the ability to reveal their identity on a successful attack.