I'm fairly certain the engine can support this, and I think it would be interesting. The bonuses would only be active while the weapon in question is out.
These bonuses would not be available as UVs. Just as you can't get fiend damage UVs on your armour, you can't get fire resistance UVs on your sword.
- Wild Hunting Blade would provide high piercing defence.
- Cautery Sword gives high normal defence.
- Cold Iron Vanquisher would give high fire resistance.
- Argent Peacemaker provides medium shadow defence.
- Sentenza gives medium elemental defence.
- Heavy Deconstructor gives low MSI.
Sun Shards and Shocking Salt don't get anything 'cause they have statuses already.
I'd like to see something like this.