Edgeguarding Tips for Chrom vs Falco

Chrom's initial up B has super armor on it. The best way to ledge guard him is actually to not go offstage much. Catch his double jump with laser (ideal) or an aggressive fair, and if he has to up B, then space a dair for the kill. It takes practice but ideally you should be able to hit Chrom's up B (at the top) with a sweetspot dair every time. If he uses up B and doesn't sweetspot ledge, and you're too far away to intercept it with dair, you can hit him out of it with a well placed laser to force him to up B again, and catch him the next time.