You can get Upgrade EXP cards from the following functions and events:Auto Farm chest,Summon,Daily sign in,15-days login,Lv pack,Hero LvUp event. Rookie pack. Limited time recharge event,etc.
Star up needs the same Hero and a lot of coins.As the star level rises,so will the number of Hero and gold coins which are used to star up.You can get Heros from Summon,Hero Shards fusion and some events like Roulette,Rookie pack, Limited time recharge,etc.
Star up needs the same Hero and a lot of coins.As the star level rises,so will the number of Hero and gold coins which are used to star up.You can get Heros from Summon,Hero Shards fusion and some events like Roulette,Rookie pack, Limited time recharge,etc.