Incorporeality

Summary
Incorporeal (or Non-Corporeal) beings are those who have no true physical form. Though they may have physical avatars or bodies, but their true essence exists non-physically, whether as a soul, as energy, or as an abstract concept. Being incorporeal is very different than Intangibility, as an intangible being's body is their true body, it just can't be affected by conventional physical forces. A incorporeal being does not usually have any kind of concrete, defined form, and can appear in many different forms if they wish, though the destruction of these bodies is of little relevance to the entity behind them.

Abstract beings are typically incorporeal.

Killing Incorporeal Beings
Incorporeal beings can be killed through; among other means. Some incorporeal beings, for example, require bodies to survive, and therefore can be killed by destroying their bodies and keeping them from getting any hosts.
 * Soul Manipulation, as long as the entity in question has a soul.
 * Reality Warping
 * Conceptual Manipulation
 * Time Manipulation

Examples
As with all example lists, this is not comprehensive.
 * The God Hand and the Idea of Evil (Berserk)
 * Teridax and other Makuta (Bionicle)
 * Gozer the Gozerian (Ghostbusters)
 * Yawgmoth and The Eldrazi (Emrakul, Ulamog, and Kozilek) (Magic: The Gathering)
 * Night of Wallachia (Melty Blood)
 * Rosei (Senshinkan)
 * Chara (Undertale)
 * Daemons and the Four Chaos Gods (Warhammer 40,000)