One archer a GHB keeps the flyer away
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Eirika (+spd/-hp) : Sieglinde / Draw Back / Moonbow / Fury 3 / Drag Back / Hone Atk 3 / Spur Def Seal
Nino (+spd/-res) : Gronnblade + / Draw Back / Moonbow / Fury 3 / Desperation / Hone Atk 3 / Hp +3 Seal
Azura (+spd/-atk) : Sapphire Lance / Sing / Moonbow / Speed+ 3 / Wing of Mercy 2 / Hone Atk 3 / Spur Def Seal
Klein (+atk/-def) : Brave Bow +/ Fortify Res / Luna / Death Blow 3 / Quick Riposte 3 / Threaten Def 3 / Hardy Bearing Seal