The Transfiguration spell Incarcolvo was introduced by Professor Isabelle Magnus during Term 27 (2073 - 2074). The spell is used to create a soft sided cage, or net, that hardens into a solid cage around a captured creature. More advanced casters may even be able to create a cage with a door in it.
The incantation for the spell is Incarcolvo, and the wand motion is a jab of the wand. A mesh-like net will erupt from the tip of the wand, which will encapsulate the intended target and stiffen into a proper cage upon contact with the ground. It is best used for small animals or objects only.