That is not really fair. Great part of the cast is never picked in tournaments as well, or have just a couple of players. It seems that rebalancing the whole game would be better.
Here's some wall combos first:
4K4K>(WS!)2P>6PK4K
then if they hit the wall and you just need to follow up, just use 6PK4K, 6K4KK, K6KK, or PK. As for juggles... (continued)
...for light weights I use 8K/H+K>KKKKKKKK(open space)/6K4K>K6KK, or you can use KKK6K~K for a wall Carry and splat. medium I just use 8K/H+K>6K4K>6PK4K, then for heavy I use H+K/8K>KK6KK(open space)/K6KK