shapular
Smash Ace
Dtilt works against characters that can't hit you through the stage. You can try dairing at the ledge, it should pop them up for a fair or something. I've seen M3t use ledge getup attack as an edgeguarding option to knock them back out. Against some characters, if they're recovering low, you can hang on the ledge and then drop dair or drop dj dair to meteor them.Besides f-tilt, does anyone have an interesting yet applicable edge-guarding options that are very safe?
Also, does G&W have any moves safe on shield?
Following up on the flub fair that Shockbound mentioned, you can actually do a few things to follow that up. My favorite is flub fair to strong fair. It'll usually result in a gimp. Against faster falling characters you can flub fair to dair, but you'll often die from that so do it when you can afford to trade stocks (i.e., opponent on last stock, or you at high percent and opponent at low percent). If you can catch them with the bottom part of your up B (not the part that sends them up) it'll pop them up a little bit and then make them fall again while in hitstun. If you're in a position where they're in between you and the ledge and you need to up B through them (this is a good tip in general), use bucket to stall your momentum, then double jump and up B. They should be out of your way by then.