If I am not wrong, you need to use a Blockbuster while in an Odd-count Combo while Squiggly is below certain HP % (don't know exactly how much)
Doing so should revive your teammates if you have already upgradade the noodle for her SA
I am thinking 12 million should be enough!
I am also really hyped for her PF, really wanting to get that golden Poltergust!
Let's wish good luck to us both! Loved Poltergust SA and have been training somo combos with her bronze fighters :D