Guar Zigmorde break points

As the title says I'm asking if anyone knows the break points or could help point out ones that I'm missing. I know about the tails and the mirror however I can't find the last break point any help would be awesome!

If she lands her soul steal attack, her abdomen starts to glow blue and becomes breakable. You need to break it or kill her before the second half of the attack goes off and OHKOs anybody she tagged.