Elithior (elf invoker) vs Kotrag (feral ninja)

Unless he didnt have the cloak. Haha. Fire vuln ftw

I reckon something like the cloak should have major negatives to using it. It should be a choice to use it per encounter rather than a given. 

Say it had - 200 hp, the feral would have to choose to cover his vuln and expose another weakness instead. 

Perhaps make it a held item so you have to choose offense or defense.

Could always make such items shift vuln. 

Resistance to fire, vuln to water...

I liked the idea of it being usable for a very short period of time with a decent wait time between uses.

Just as a note: If an item is too powerful for one person to have, it is too powerful to be in the game. Making a super item have only one copy just ensures that only one person will be overpowered. It doesn't at all balance the item in a fight.

Especially if that said item is only really useful for a single race.

An item or skill shouldn't negate a vuln. Just like the watcher skill doesn't cover the feral vuln, discord fire shield doesn't help defend fire giants, and mana shield doesn't protect undead against wrath. The ring of abyss shouldn't work on giants/ogres and the same is true for the ash cloak and feral.

If you want to make the ash cloak still useful against fire, have it prog some damage back (or heal, provide a buff, or whatever) when the user gets hit by a fire-type spell and NOT add a resist.

It is going to work a lot better if you don't mess with resists/vulns on items.