Well, frankly, I'm new here, but not to BlazBlue. Ive got a FRKZ combo i'd like to share, that Im unaware is actually marked down. Mind you, it's not an easy one, but I've worked it on Ragna, thus I think it'll work on Tager and Hakumen alike. The rest I'm unsure of but:
1 Nail, FRKZ Activated.
6C > D > 6D > 4* > 236C > \ / > C > 6 > 2B > 6C > jB > 6D > 1* > 263C* [cancel and repeat for breakable j263C trio just before final hit.]
* short aerial buffer movement, just to set up nail throw
Without the 3 throws, and subbing out 263C for another jD [or 3jD..? Based on direction.] damage is 5121, with the 3 throws, 11750.
*Pretty hard to do the jD into the 263C, make note that it IS possible however.
Works best in corner, otherwise is pretty hard.