Thanks for the advice. I'm taking a bit of a break from the game though. Got jab locked by a Fox with no hope of escape and got chained like hell before that. Also got insulted and disrespected a lot. Been on a major losing streak with Mega even though I've been trying hard and I've getting treated like a Black sheep on FG for it lately. Been playing friendlies too and doing my best to learn. Can't contain my salt lately though. Need to simmer down and do something else for a few days.
Dude, before going to for glory with a character as deep as megaman, you should play with more friendly people who are willing yo help you. Send me and inbox and we can play some ditto matches and I can teach you a few things (but not today, I'm at work today haha).
Anyway, I've come with this as metal blade combos:
Full hop over your opponent>z-drop>fastfall>down smash/charged half up smash
short hop over your opponent>z-drop>fastfall>up smash
sliding thumb from jump to b>angled foward down metal blade>utilt/up smash
sliding thumb from jump to b>angled down metal blade>utilt/up smash
and the classic metal blade throw/item, dash instant bair.
I think this are my bnbs, if i remind something later I will post it.