Getting through the Mother's chassis seems to be about as hard as getting through that void enforced wall - the vorpal blade cuts, but not as effortlessly as usual. Instead, it cuts more along the lines that a normal blade would to a normal target. It catches in the middle, as if stuck in a bone, but the boost of energy from the Mark will carry it the rest of the way. It takes the Mother off guard, and as that arm falls limp, the dark magic stops pouring through it.

Ignatius takes the opportunity to turn into a small eruption of ghostly white flame, breaking free of the other arm and pulling away as he tries to shake off the effects of the dark magic on his soul. He looks like he's being gradually worn down by the battle, but he's still going.

"Right there!" he shouts, summoning up a bow of flames, and launching a shining white arrow at the hole he left in the Mother's chest. For the first time, she makes an irritated sound of discontent as it strikes her torso, and as her arm falls to the ground. She swipes her other arms at Ignatius and Peridot, tugging against the crystal vines trying to hold her legs. Debris clatters off of her head and body.

Then Lambert hits from behind, trying to tear off her other humanoid arm. It doesn't work, not without something more compelling than sheer physical force. Yet, she can feel that iron near to her. Another of her arms will attempt to knock Lambert away, while also dealing with both Ignatius and Peridot.