I think it's time we bring up Fang of Vog again.
Let's compare Fang of Vog with Acheron:
Pros for Fang of Vog:
1. 360 charge attack
2. Chance of lighting enemies on fire even with normal swings.
Cons for Fang of Vog:
1. 50% chance of lighting self with strong fire every charge attack.
2. Ridiculously slow swing for a 3-hit sword.
3. Lower base power than brandishes.
4. Requires 40 tokens from the final boss to obtain.
Pros for Acheron:
1. Ridiculously high base power for a 3-hit sword.
2. Swings faster.
3. Long ranged charged attack (with 180 range at close proximity).
4. No self-inflicting status.
5. Easily obtainable.
Cons for Acheron:
none
Proposed Buff:
1. Increase base power and attack speed to same level as Acheron.
2. Lower self-inflicted burn status to moderate. (so it is possible to gain immunity from it)
Ideally also debuff Archeron:
5% chance of self-inflicted moderate curse on every swing.
Meh, even with the chance of curse Acheron will still and forever be OP. In the past, I proposed the idea of giving specialized weapons less damage against neutral enemies than their normal counter parts, giving players the incentives to actually try out normal damage weapons.
As for FoV, I think the main problem with the sword, much like the other FSC rewards (except for CoA), they are incredibly situational. I think instead of making FoV more like a normal sword, it should become more specialized in its role, ie. giving FoV a stronger charge attack, allowing the sword to offset its bad normal attack, a larger radius would be a good place to start.