To cut to the chase: I hunted a Sorcerer Morus from Elph Rappys for a month at every chance I had and got nowhere. There are none in the shops, I have seen none equipped on anyone. For all intents and purposes that weapon camo does not exist.
If Sega is going to advertise rewards from limited time enemies then those rewards need to actually appear in the game.
The fact of the matter is that this kind of stringency on advertised content is going to alienate and frustrate people. Im not a whale but i do spend money on this game. If this is how things are going to continue to be then I will no longer support this game financially.
I dont have enough time anymore to waste on chasing things that I have no hope of actually obtaining. If something is supposed to be ultra rare then perhaps just dont advertise it. If something is advertised then It should be reasonably available.