Strat Barrier on two or more units are stacked multiplicatively. It is guarded by Suzaku, which has Attack All and Recovery, requiring you to kill it twice. This unlocks a new unit, Winter Deity Rigret, and Rigret awakens. If a Nation has distinctive teams, you can consider attacking Night teams at Day and Day teams at Night. With All Attack, Freya can apply status ailment to all available targets.
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