Ok. So my giants b10 team is Sian(L) Emma Chasun Theomars. Sian and chasun are 6 starred already. Using a Beth rep and Alicia rep, I can make it to the boss stage and inflict about halfway damage. Is crystals worth using for clearing for a Light Dark scroll and whatever the chest gives me? Also, when does the server time for global server reset? I wanna summon during that time for higher chances for nat 4s and 5s.