[New Contents Update -- DOOM]
New Dweller:
--Samuel Hayden: SSR Guardian Dweller, new Crossover Card Pool 'DOOM'.
--Purify Expert: SP Healer Dweller, new Card Pool 'Purify Expert'.
New Contents:
--New Dweller Promotion: Samuel Hayden, Purify Expert
--New Instance: DOOM II Earth Keeper
--New Gameplay: Personal Chip & Plight Challenge
--New Event: Tranquility Lane IV & FEV I
--New Attachment: Cleanse Land Set
--New Arena: 3V3 Union Arena