Whit
Smash Journeyman
Speculating moves is a shot in the dark and yes I know I'm being a hypocrite. I really think it would have to be simpler than that though.Don't really think they would be a semi-clone, because we don't really have duo sword characters yet. . :
The potential moves such as Dual Guard (Which would cancel any attack unlike counter) and Dual Strike (In which the other does the same move, but obviously done differently), relying comboing fury (Lucina) or offense (Chrom) gives alot of options for them to win the battle. Or perhaps we could have the relationship mechanic involved too, when you get C, B, and A support you gain better stats. O.o
Megaman = projectiles
Rosalina & Luma = separate
Little Mac = super armor
Chrom & Lucina = ?
Lip = stage mod (wishful thinking)