Snowglobe

The Snowglobe is a item in Risk of Rain that creates a heavy snowstorm that randomly freezes all monsters on the screen at a 30% chance and lasts for 7–8 seconds.

Trivia
The scene inside the globe seems to be of the commando walking on top of a small planet(?) In space, as as seen on the title screen. This is also referenced by it's order details in the item log.