Shell Shocked

This team seems very unconventional, but it will work.

Very minimal skill inheritance except for S-Frederick who must have Drawback, Klein with Moonbow (you may be able to swap this one out), Celica who is a fully-built unit with swap, but she's only there to attract enemies and will not be entering combat, Swap however is needed. Olivia also has Wings of Mercy, but I didn't need it. IV's are currently unknown for S-Frederick, but if he's -att this may not work. All units are fully invested in the skills they naturally get. (It should be noted that Celica has Fortify Def, though I don't think she has to have it)

Turn 1: Create a little Tetris shaped cross with Frederick in the middle. Celica should be to his left and Klein to his right. Olivia should be right behind Frederick. For an idea of placement, Olivia should be in front of the forest at the very bottom.

Turn 2: Have Frederick kill the Flier in front of him, this will require dance and Olivia's hone attack. After this, have Celica and Klein move back one space. Frederick will tank a hit from Maria, which will do somewhere around 14 damage.

Turn 3: Have Klein take down the sword flier, then dance him to take down Minerva. Now have Frederick drag him back. Have Celica move back one space. Olivia will tank a hit from Maria.

Turn 4: Have Klein take down the Mage, then use dance on him. Have Frederick attack the last flier before killing them with Klein (if your Klein has optimal IVs you may be able to just finish the job with him) This will just leave Maria, all you units should be able to tank a hit from her.

Turn 5: KO Maria in anyway possible and then collect your orbs.

Summer Frederick

Klein

Celica

Olivia