So there’s a rank up gem (3 to 4) only for 2015 champs when you explore a chapter from variant quest. Does anybody have a list of those 2015 champs or atleast memorized all of it? Lol.
And 1 more thing, does the recent release of 5* version of old champs (like DS BW and electro) eligible for those gems?
Ps: there’s an electro in one of 5* dungeon crystal

not sure if it’s worth a shot lol