Reroot tree: Tree digs itself out of the ground, walks to another location and takes root, as if it's always been there.
Heap sort: More advanced technique for which Reroot tree is a prerequisite for some reason. Arranges assortments of things into neat piles with only one kind of object per pile. Very useful when looking for things in treasure chambers.
"The owlbear is sorted into neat piles, the first containing hair/nails/claws/beaks, the second feathers, the third bone, the fourth meat, the fifth blood.."