I quite like the idea of the chair modifying things like a command dash which turns into a high angle jump in attack, just like in real wrestling ala sabu (I think sabu ran off chairs?)
as for the shield throw thing, I remember them mentioning how it would just be a chair, so it wouldnt come back to you. Which got me thinking on what could be done with it if Beo could throw the chair and different results could come of it (through certain punch buttons etc) I remember someone posting somewhere about suggesting beo being able to throw it into prone, upright or "bear trap" position, where it would snare folk. I really liked this idea.
With the idea of throwing it into its set up state, I started to think how that could maybe work like peacocks item drop assists, and allow combo extensions off things like Excellabella and Grab Bag, this could especially be true if that extra knock into hit concept gets in, I can see excella assists really working for him esp if he can go into a combo at mid screen without attempting to do some crazy stuff in the air (i.e valentine has to jump and match the trajectory to land flatliner, and I dont even know if she can use her normals in such a way that she can get a traditional combo off excella). Grab bag could also work if the chair persists despite beowulf being tagged out, which would make sense and be awesome, imagine the chair catching the opponent just like item drop does currently, I doubt mikeZ would allow that tho as I recall he didnt want grab bag to combo (dont quote me on that Im not even sure myself), but people found item drop anyway, so I dunno *shrugs*
I also really like the stomp, I can imagine the chair anti airing jump backs if the trajectory is right.