Echidna vomit weaknesses

She hadn't included the Undersiders in that stream. Until they were more fully absorbed, there was a good chance that she'd spit them out if she tried to copy them. Using any one person too frequently carried the same risks, and she suspected that it would be more difficult now that she was so full.

[...]

Noelle tagged several of the bodies in her internal stomachs, felt flesh constrict tight against them, felt the pre-prepared nuggets of flesh in her gullet forming into close replicas in an instant. Timing was crucial; if she spat them out too soon, they'd be malformed, missing limbs or features. Too late, and there was extra material.

She retched, sending them flying in the direction of the girl with the dogs. Bodies for Trickster to use.

But the boy with the armor was already moving. He slammed one hand into the ground, and a cloud of debris and dust masked him and Bitch.

She couldn't wholly control the vomit, lost one of the powered ones. Not one of the Undersiders, she was relieved to note. It had been the big one, who'd been with the tinker. He'd called himself Über. She didn't try to reclaim him. He was more or less useless. The loss still pained her. Better to have him than one of the unpowered ones.

- Interlude 18