I'd like to make an attempt to build a team using Roy and Lilina effectively on the same team, if that's a possibility. My Roy is +Atk -HP and merged +2, and my Lilina is -Spd +Res and merged +1. My current placeholders are Hector (+HP -Atk) and Ninian (-Def +Res and merged +1), but willing to switch out to other characters to try to make the team effective.
My current 5 stars are as follows (excluding Roy, Lilina, Hector and Ninian as I said earlier):
Red:
Athena, Gray, Saber, Leif, Karel, Eirika, Vanguard!Ike, Chrom, Olivia, Masked Marth (+1), Soleil, Black Knight, Brave Roy, Exalt Chrom, Xander, Siegbert, Caeda, Elincia, Sanaki (+1), Tharja
Blue:
Fjorm, Lukas, Ephraim, Valentine!Eliwood, Camus, Clive, Finn, Oscar, Clair, Tailtiu, Valentine!Lyn, Reinhardt, Summer!Corrin (+1)
Green:
PA!Azura, Valentine!Hector, Spring!Alfonse, Gerome, Fae, Spring!Sharena, Nino, Soren, Valentine!Lilina, Cecilia
Colourless:
Jeroge, Valentine!Roy, Summer!Frederick (+2), Jakob, Maria (+1), Lucius, Clarine
If it helps, I can list the IVs in an update for all units if needed be. Any and all help will be heavily appreciated.