# Water
Water comes in several forms:

as a potion of water
in a fountain
in a sink
in a pool or moat
in a rust trap, which somehow affects only worn armor and wielded objects
on the Plane of Water
Some monsters are made of water, for example:

water elemental
water troll
water demon
Water is that clear liquid that you probably know from real life. In NetHack, water can rust objects or drown you, among other things. In a fountain or as a potion of holy water or unholy water, water has more magical effects. In a sink, water can have bizarre effects; for example, it might mutate (polymorph) you when you drink it. The watery monsters don't actually tend to cause water damage.

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