I’d love for such a solution to be implemented, but I expect if the guild guardian option (which is essentially the same thing, but would seem to require less UI/coding changes) was rejected, this one will be too
There’s a very significant difference here. The Guild Guardians approach would have roughly tripled the odds of pulling high rarity treasures (based on the 70%/30% setting) after meeting the cut-off criteria, the Choice of Portals approach keeps the odds (and the received average value) constant.
I support this idea. I have every Delve troop in the game leveled to Mythic Quality and I still have 22,235 Chaos Shards. It feels really wasteful to use them opening portals where half the troops I get are just useless because I can’t upgrade them anymore and all I want is treasure troops. Unless there is something else that Chaos Shards will be used for, right now I get far more than I need when I do the monthly Delve to 2500 in the Event.