To tell when a bfer/dbfer is going to flip u its abit obvious.
They will suddenly stop their bf/dbf and then dash and flip towards you.It might be a bit hard to avoid at first but you will get used to it sooner or later
To do teh super ultra block,find a noob bfer who dosent flip and practice.As soon as u hear the "ding" let go of your block and block again.
Once ur more used to it u dun need to hear the "ding" u can tell when the enemy is about to hit your block
To annoy people like mad,move around and turtle when its like 8 vs 8 and u and the enemy are the only ones standing