s.C,df.D(2hits),HD,s.D,dp.A,(HD)rdp.B,dp.A,(HD)qcb hcf.A(Hold),dp.A,(HD)rdp.B,dp.C,(HD)rdp.B,dp.C,(HD)rdp.B,dp.A,(HD)qcfqcf.AC (872 Dmg)
You can go with a dp.C after the orochi but I couldn't succeed to combo afterwards.
This combo is the most damaging one i found with 3EXs.
But it does not worth it, because it's just too difficult ... , here is what I'm doing :
s.C,df.D(2hits),HD,s.D,dp.A,(HD)rdp.B,(HD)qcb hcf.A,rdp.B,[dp.C,(HD)rdp.B]*2,dp.A,(HD)rdp.B,dp.C,(HD)qcfqcf.AC (863 Dmg)
Far easier for 9dmg less.
Be careful the range is really terrible, you have to be stick to the corner.
Slight edition of Karn combo.
4 EXs version :
s.C,df.D(2hits),HD,s.D,dp.A,(HD)rdp.B,(HD)qcb hcf.A,rdp.B,dp.C,(HD)rdp.B,(HD)qcb hcf.A,[dp.C,(HD)rdp.B]*2,(HD)qcfqcf.AC (923 Dmg)