Unit of Choice/Returned Heroes

Schedule
 * Login Campaign: Jan 1, 00:00 ~ Jan 21, 23:59 PST (2018)
 * Claim Period: Jan 1, 00:00 ~ Feb 4, 23:59 PST (2018)

Notes:
 * The following units are eligible for Unit of Choice
 * All Rare Summon units between Lava and Adel batch that have Omni Evolutions

{| width="100%" border="0" cellpadding="1" cellspacing="1" class="wikitable" ! scope="col"|ID ! scope="col"|Name ! scope="col"|Element ! scope="col"|Rarity ! scope="col"|Cost