Ghost

From LSWiki

This is what you become after you die. Most people revive quickly, but there are some benefits to staying as a ghost for some time.

Ghosts are intangible and have wingless flight. They also are ametabolic, have breathing of None, and are undead.

They also seem to have +1 night vision, or otherwise paravision, such that they can see in many places.

However, they can't undertake countless typical actions, such as speaking, or emotes. They also don't have inventories (except for extraordinary cases like teleporting from Lakan via the silvery rod, which places the Talisman of Kalkin into your ghostly form, dropping it after you disincarnate).

Being a ghost is excellent for exploring.