My effective team :
1. Nowi, with Quick Riposte 3 Sacred Seal, tank unit, red sword units bait and counter, some red mages counter, Raven mages counter.
2. Eir, with base kit, bonus unit, mages counter, exclude Raven, good damager. Used vs boss healer from last map. Healer.
3. Young Azura, with Moonbow Special, refresher, blue mages counter, blue armors with DC counter.
4. Masked Marth, with Renewal 3 and Reciprocal Aid, healer, dragons counter, Surtr counter with others units help.
All units 5 stars, needs SP and Hero Merits, not penalty's for speed and survival.