bfe has limits but bfe is easier to earn bfa is somehow bigger if your redstar, cella, laoda here to share; my equips gives 25m attack bonus my ally gives 3m attack bonus as what you on your allies profile 1coe has 3m attack on unloaded troop but add higher as troops regen to sum it up; i have 31m attack value which is enough for me to unload on haunting without pots and without fails. so what you see is what you get on bfa however; imagine if you have 100allies that has 5m attack bonus that they gives to you so you have 500m attack bonus. thats bigger than deffence bfe of full enchanted red paladin equips. thats how bfa and bfa gives. now the propacks will add 5% 10% on that deffending how big all your stats and bonus. hope this helps