Tree Globe

Throw one at the ground and every tree in that biome rerolls to a different look. It is purely cosmetic, and it is the quickest way to fix a forest whose trunks clash with the base you just finished building.

The globe has to land on the right ground: biome grass or snow, inside the biome you actually want changed. Throw one across a border and nothing happens. Only the Forest, Jungle and Snow have alternate tree styles at all, so anywhere else is a wasted purchase. Hallow trees follow the background art instead and can only be shifted with a World Globe.

The Zoologist will not list it until your Bestiary is roughly half filled, which is a long way into a run. Buy several when you get there, since the reroll is random and you will usually need a few throws to land the style you had in mind. It counts as ranged internally, so ammo saving armor occasionally gives one back, though quivers and ammo boxes do nothing for it.