Alt. [FC]214A > 236C > 236D > 66214D~C > 665C > 2C > Aerial D - 4,795
Assuming you're near enough to the corner you can do even more damage, but for the most part 236C > 236D is the better option.
Alt. 3C > 214A > 2DD > TK > 66A > 6C > 236C > 5C > 2C > Aerial D - 3,398
Gravity Seed needs to be delayed quite a bit with your combo so you can keep your opponent low to the ground. You'll also need to do a small step back before you 4B and then catch your opponent with the 2DD as low as possible so the 6C connects. Both combos are fairly easy to execute but, for 100 damage extra, preference should dictate which one you stick to.