(note: this is a present tissue but NGS is still being built out, maybe we can influence the team on how to handle this in the future.)
First i totally understand why these are not tradeable. Thats not the issue. The issue is a just got a 15* summoner drop and a dupe of another, and...well...theres nothing* i can do with it. (besides make them into a perm camo). They are hard enough to come by and too valuable to just toss in the trash.
Is there some kind of system that the game can introduce to 'trade in' your 15*drops at least for valuable parts? I dont want to toss this summoner weapon, but i dont play summoner at all, and wont ever.
SO theres got to be something to reward the player that managed to get one of these rares.