The appropriate Guild Store building levels will still be required to have the option to purchase the stones in the first place (Level 6 for Blood Stones and Level 8 for Power Stones)
I am buying one or more gladius pack after almost every brawl. But I can not buy blood/power stones. It would make sense in my opinion to lower the levels a bit. There is only very few guilds that have the means of getting into a LEVEL 6 guild not to speak of level 8.
Lower these to 4 and 6 or maybe just 5 and 7 and you will have way more DEC burnt.
I know that on the counterpart it could be argued that with a change like that guilds would not be incentivized to level up their buildings. Still something to think about as I believe that if lower levels would be allowed guilds would still want to level up. Just wanna throw this here and maybe someone wants to pick up on that.
MAybe another proposal could be made for that if enough players would like that.