The new draft for the marth revamp after talking with DS a bit looks something like this:
+ Fair tip raised to 70 angle, nontip dropped to 35
+ Bair lower angle (part of neko's edit)
+ Uthrow less lag, less kb
+ Dthrow lower angle (maybe more damage)
+ Bthrow less endlag, higher angle, and more kb
+ Dsmash more base
+ UpB hitbox rework (see below)
- Fair tip 9 damage, nontip 7 damage
- Bair lower kb (part of neko's edit)
- Remove upB invinc frames 1-4
- Lower uair tip growth
+/- Dtilt less kb, higher angle
+/- Physics modifications:
: Lower weight
: Higher fgrav
: Less horizontal air acceleration
: More momentum from a run
The fair change is to promote using it to combo, but not to camp. Lower damage not only means that camping fairs is less effective due to a lower damage output, but it also means it won't be nearly as safe when rising, and can only be used safely when ff'd (due to shieldstun being based on damage). The physics modifications also work toward this, making it harder for him to weave in and out, while still allowing him an approach game due to the momentum and faster jumps due to more fgrav. The other purpose of the physics modifications is to make him get combo'd slightly easier, without gaining extra resistance to KOs off the top.
The bair rework neko has planned turns bair into more of a gimp move due to the angle change, without being ridiculously good for killing with the lower kb. The tip would be set to a 30 degree angle with less kb, and the blade would be set to something higher (around 40 or 45 degrees) with also reduced kb.
Uthrow should be well known why it's there by now. It makes it into a combo throw, as opposed to the... string throw it is right now. If left alone, uthrow -> uair would become a combo at killing percents, so the uair tip will be nerfed in growth to prevent it from killing as well.
Dthrow lower angle makes it better for techchasing, as currently it's possible to airdodge out instead of being forced to tech, where they should be forced to tech at any reasonable percent. With three other throws that can work as a combo throw, it might be worthwhile raising the damage slightly (I'm thinking 5 -> 7).
Bthrow adds even more variety to his throw game. It would be another mixup option - if DI'd away, it would set up for a tipped bair. If DI'd up, would lead into uair.
His fthrow wasn't mentioned as we agreed it was fine as is. I figured I'd mention it here as I was talking about all his other throws. lol
Dsmash won't have a huge effect on his game. Just make it a little better for killing and fix the stupid risk/reward on this move. Not gonna bother rehashing it all when I've already said it:
I personally think his dsmash is a bit underpowered right now for the risk it entails (hits frame 6 and 21, ends 64, while it has less base and only very slightly more growth than fsmash, and is harder to space on top of that... this thing can be punished by a half-charged smash if you screw up), so I might want to see it get a little extra base to even out the risk/reward (currently, it has a compound growth (damage*growth) of 1360 and a base of 50, while fsmash has a compound growth of 1330 and base of 80, so I'd like to bring it up to 75 base).
Now, the upb hitbox rework. We're doing this for a couple of reasons. First off, we're removing a major use of it onstage by removing the invincibility - breaking strings, and we're also somehow making his recovery
worse due to the physics modifications (less horizontal air acceleration and more grav = much tougher to recover effectively). So we're giving it use as an attack. The strong hitbox will be returned to its previous power, slightly moved behind him and enlarged. The weak hitboxes will be given slightly more kb and possibly a lower angle, to facilitate their use in edgeguarding.
The dtilt change is both a buff and a nerf. It will make it much less effective as an edgeguard option (forcing marth to rely more on his aerials for edgeguarding), but it will enable it to combo into a grab more reliably at low percents (it does this already if you hilt it, actually).
I think I've covered the reasoning for everything so far somewhere in there.