If weāre talking just any items Iād throw in the lilā oryx egg as one of if not the rarest item in the game. Behind that, not nearly as rare but fairly so still we have beer slurp. Thatās excluding the new prize items made for the tomb/abyss speed runners where thereās a a limit to how many exist in the game. Someone mentioned the old minor HP pots / 7 stacks but honestly theyāre not that hard to get your hands on.
If weāre talking rarest items that drop, we have legendary pet eggs. Other than that, perhapsā¦getting a davy key from a beach bum. Considering beach bums already rare chance of spawning on top of it being a rare drop. A locked reactor while probably not as rare as those but pretty high up there.
I canāt really think of anything that drops from a dungeon or realm event as rare. UTs from harder to get into dungeons like the Shaitan skull would probably take the cake, still fairly common but with dungeon events and such. Omnis and crowns are probably only as rare as event whites honestly, you canāt go a few minutes without seeing someone with one.
More limited time dungeons with lack of keys, vanities like battle nexus whites, still not too rare. Going limited time and we have things like the bunny helm, entropy reactor, ect ect. Going limited time AND have only released once so far, we get things like the Unholy Paladin Set, Mad God weapons and I think ornament only released once?
Didnāt know where to put it but the Amethyst Prism Dagger is also fairly rare, I found one on an alt from like 6 years ago recently and I had totally forgotten it existed up until that point
Thatās about all I can think of