Make sure your Insectors are out of range from Big Bazoo Beetle and Cold Cuts. Both can deals critical damage to your Insectors. Gum Roller can protect itself but will go down with a few hits. The most dangerous one is the Faerie. If it's Charm Beam somehow connect on your most powerful Insector you might lose this one. Since Faerie is the King of this round make sure you have more than one Insector at the end.