Donated mount tooth cap that lets Carl summon Rend to his position from up to five kilometers away.
Similar to the caps Mongo wears on his teeth but designed for mounts, this donated cap was installed over Rend's single round tooth, making it gleam silver. It isn't a teleport: when Carl summons him, Rend is inexorably dragged toward him at great speed, smashing through any wall in the way. Range is about five kilometers, cooldown only three minutes, and it pairs viciously with Rend's new Wrecking Ball ability.
Because the effect is so dangerous, Donut flatly refused to put one on Mongo. The name also touched off a bitter running feud between Louis and Elle over whether it should be "Hi-Yo" or "Heigh-Ho" Silver; Carl privately sided with Elle and the AI who named it, admitting he'd have said the same as Louis a day earlier.
A silver cap fitted over Rend's single large round tooth, making it gleam.
Rend's mobility upgrade and the unlikely source of the chapter's dumbest argument.