Atlus released a tutorial video that teaches players the Persona 4: The Arena basics. You can do an auto combo by repeatedly hitting A, press B+D to do a counterattack, and hit ACD for a Burst attack. Bursts send an opponent flying across the screen and interrupt combos.
The commands Teddie and Rise discuss are shared by all of the fighters in Persona 4: Arena. Of course, each character has unique moves with BlazBlue style commands too. By the way did Teddie sound different to anyone?
Here’s a clip from Shin Megami Tensei: Persona 4 for comparison.