I've found a corner set up that gets around 750 damage (depending on character and ender variation) for 1 bar. (Or 1.5 bars using mb F3 adding meter built)
Set a clone to restrict movement. It'll recharge by the time you'll need it for the set up.
F3 (or mb f3), b2, 11, 123~mb pp, F3
Clone, dash, PP (or tick PP), they'll be pulled into the clone, tech roll, dash, f3, b2, 11, ender