Undead

taotad's picture

The dead that has risen from the grave. Even though someone have no grave, and someone doesn't even rise.
What undead have in common is a link to the negative+energy+plane that fuels their undeath.

It is also a creature classification in the D&D system.

Source
D&D Glossary

Planescape, Dungeons & Dragons, their logos, Wizards of the Coast, and the Wizards of the Coast logo are ©2008, Wizards of the Coast, a subsidiary of Hasbro Inc. and used with permission.