The inability to apply oil to a weapon during combat is unforgivable. It's gives the combat a very frustrating, unfair trial and error aspect.

If you happen to stumble onto a certain creature you are forced to fight it without the correct oil. Yet we can swap and change potions and other items at will? It's blind sighted by the devs and makes the combat even more frustrating.

Don't get me started on the higher level red enemies which you have to flee from, because your powerful weapons do very little damage. A sword strike just clips through them or deals very little damage which they soon recover from. We are not allowed to challenge ourselves.