I could tell what items were illusionary because of (illusion), or some shit
i was pretty upset at first, because it felt like a waste of time trying to figure out if the mob had the item but,
First thing I noticed was: If I tried to shieldcleave, disarm, or otherwise affect the item it would say you couldn't do it to an illusion, the last thing I noticed was that I saw a flag on the item letting me know it was illusionary.
This may be given with exploration, etc but either way.
Considering i could tell without even fighting the mob, it doesn't really bug me anymore; being able to see where the highly rare items actually come from makes exploring so much more fun and informative
Deleted borglov btw, he started strong but I waited too long to cabal and didn't really match up to the high level warriors