tos when to use exp cards

You can use all of your exp 1,2,3,4,5 cards whenever you feel you’re underleveled. how many credit cards are too many For example you’re doing a level 40 map with a lvl 30 character… People usually starts holding lvl 6,7,8 exp cards, because of the famous “wall” of 160 to 175 So, you shouldn’t worry with this for now…