Fallen Robin (M) Team Recommendations?

Well either go for Dragon emblem or armor emblem if you are going for emblem teams or you could go mixed team.

Personally go with Armor emblem since armor emblem has armor march( unless you don't have one) which can benefit Grima by a lot.
I recommend to have 1 red( with TT ongoing I recommend BK or if you are a whale go with Zelgius), Effie, Grima, then any of the armor unit(prefferably colorless AKA H!Jakob but it's just a sugestion). For C skills it's pretty flexible so just go whichever skill you want and I recommend (if you have) Armor march and Armor boots.

Well if you're using armour march then obviously the teammates are going to be armours. Do you want mergeable teammates or any teammates? If you don't care about merges I would probably go for Zelgius, Hardin, and H.Jakob or something like that. If you want merges, I think you're stuck with Sheena, Draug, and your choice of Effie or Gwendolyn, probably Gwendolyn because Draug and Grima will be your aggressive units and Gwendolyn is more solid at the cost of weaker offense without an ignis.