Originally banner packs were a good thing they got updated quite regularly and had good stuff for new players then the system changed and added in the fragments part to it which is a great idea but the ratios and design suck it is currently

10 frags per soul with 100 frags giving a free banner soul this would be a lot better if they made they system 10 frags per soul with 750/1000 frags giving a guaranteed toon and talisman set this would work a lot better and follows the same principle as events and this would be better for when bringing toons that have been in events back instead of depending purely on heroics