Incursion Store - Different available crystals
Hello,
I'm currently on Uncollected and Tier 6 in Incursion. In my Incursion Store I have 5 Star - Stun crystal.
While someone I know, they are currently Cal and in Tier 7, and he got 5 Star - Stun Immune crystal, which included completely different set of champs.
Does anyone know which factor is giving these different crystals optionsm
It is Uncollected and Cal?
or
It is Tier 6 and Tier 7?