4A+B against Xiba.
Xiba AAK - Use 4A+B right after you block the first hit. It will aGI the second A from Xiba and start your 4A+B combos.
Xiba 66BBB - Use 4A+B right after you block the first hit, Xiba will whiff the second hit giving you a free 4A+B into combos etc.
When you land 4A+B...