Arin (Rumbling)

Obtain this unit from Legend Stage: Crystal Chapel Act 3 with a 2% chance on victory (Pity: 75) or Legend Stage: Crystal Chapel Act 4 with a 15% chance on victory (Pity: 10). The evolution items (Basement Keys) are given in quantities of 1-5 per completion of Crystal Chapel Act 3 & 4. Obtainment Met