message board to Devs

I submitted a questioned on the message board concerning Skeleton King's battle skill of "Supremacy Buff for the two heroes with the highest atk". The Supremacy Buff for Astromancer is "random" for two heroes. You can visually see that buff applied but you don't see the buff Skelton King being applied. Is this a visual bug or is it that you can only have two heroes with the Supremacy Buff? I have looked back on posts concerning Skelton King since he was introduced into the game but cannot find any mention of this. I used the Dev message board for this question on 30 Jun 2025 but haven't received any answer back yet.