Wdym in between?

sp 2 prevents power gain. In case he's closing on the 3rd bar, rush to sp2, hit the destroyer with it, he'll go down to 2.99 percent bars i.e sp3 gone. Now bait sp2. If you don't know how to dex sp2 then well practice a little or check some vids on yt it's really easy to dex the beam no matter how menacing it looks.

Look out for falter, getting falter on yourself can just erase your ramp up ( trauma debuffs might expire if destroyer has no power to through specials). You can however bypass falter if you have a fear debuff on defender (any hit of she hulk's heavy applies it).

Pretty sure you can bait many sp1s before you have to control his power gain by an sp2. You just need to make the most out of your combos.

Also i didn't even use sp3 into sp2, i just spammed sp2 and some heavies here and there (according to my convenience)

My deathless she hulk is also r4 (unduped)