The anvil is a heavy shaman item.
The anvil can be used to weigh down objects and prevent them from moving.
One of the most common use of anvils to is to place ghosted anvils on structures to balance them
Another common use is to airships, or to launch mice using a catapult.
Shamans can use anvils as stepping stones or stairs to help mice get around certain obstacles.
Troll shamans will often drop anvils on players who are attempting to scale walls.
Anvils can also be used, in a combination with a plank and small box, to kill mice.
Another use of anvils used by troll shamans is to destroy bridges and the builds of other shamans.