I was playing around with C-Ryougi and found some cool knife combos that I haven't seen anyone use. All damage is on V.Sion
Anywhere on Screen
Basic Knife BnB:
2a, 5bb, 2b, 5c, 2c, 6c, 22a, 5bb, 5c, j.bc, dj.bc236b
(4,508 damage)
If you airdash between the j.bc and dj.bc you can get on the other side of them and should have enough time to run up to the knife and grab it before they land. Compare to the basic knifeless bnb: 2a, 5bb, 2b, 5c, 2c, 6c, j.bc, airdash c, dj.bc236b, which does 4,310 damage.
Full Screen to Midscreen
High Damage + Knife Pickup
2a, 5bb, 2b, 5c, 2c, 6c, 22a, 2a, 2c, 623b, 2c, 5c, 5bb, j.bc, sdj.abc236b
(4,720 damage)
Does pretty good damage and you end up landing close enough to the knife to dash forward quickly and pick it up. Unfortunately, 22a -> 2a -> 2c doesn't work on all of the cast.
Knife Pickup + Oki
2a, 5bb, 2b, 5c, 2c, 6c, 22a, 2a, 2c, 623b, 2c, 623a.
(4,041 damage)
Lands you right on the knife with just enough time to pick it up and IAD j.c at them on wakeup. You can also choose to end the combo with 236c or 623c for more damage and different oki options, like leaving the knife and going for a sandoori.
Corner
All of the corner combos start with this:
2a, 5bb, 2b, 5c, 2c, TKj.236b, 5bb, 214a, 2c, (delay)5c, 22a...
There are a variety of ways to end it.
Meterless High Damage + Oki
... 2a, 2c, 236a, 236a, 236a
(5,250 Damage)
Doesn't work on the entire cast. Omit the 2c to get it to work on everyone for 5,100 damage.
High Damage + Better Oki
...2a, 2c, (slight delay)5c, 236c
(5,525 damage)
Possibility for sandoori afterward. Doesn't work on the entire cast. Omit the 2c and 5c to get it to work on everyone for 5,259 damage.
High Damage + Airthrow
...2a, 2c, 5c, 5bb, 214c, dj.bc, airthrow
(5,547 damage)
In case you wanted to try an arc drive setup afterward or wanted the airthrow for whatever reason. You can omit the 2c to get it to work on everyone for 5,424 damage.
63214c Ender + Oki
...2a, 2c, 5c, 63214c, 8c, 6c, 8c, 6c, 8c, 6c, 4c.
(5,780 damage)
Even higher damage and looks awesome. Omit 2c to get it to work on everyone for 5,692 damage.