I have reached max level with my mummy Eddie and all his talismans are 3 stars max level. Mummy Eddie is 3 stars level 60. My two dogs are 4 star and 3 star, level 41 and 53 respectively. I am in the boss stage for the battlefield on normal and can't seem to beat it. My 3 star dog dies in the first wave every time. I am ready to evolve my Eddie but I don't know where to get materials. Seems 4 star evolution materials are not found on normal, hard or insane in the first world and not on medium or hard on the second. How am I supposed to win this battle? Any tips?