Another spell altered to fit in better with ideas about conceptual magic: invisibility.
Invisibility
Causes light to pass through the spellcaster to conceal their position until some action reveals it.
Thoughts:
- This is similar to but not quite an illusion. As long as there is no physical contact or visible movement, the caster can remain invisible for a long time.
- If the caster touches or attacks someone, throws a dagger, or even bumps into a chair or opens a door, this reveals the caster’s position and ends the spell.
- Anything worn or carried when the spell is cast is also made invisible, but only as long as the caster continues to wear or carry it. Throwing, dropping, or putting down an item makes the item and the caster visible.
- Other actions can reveal the caster’s location as well. For example, lighting a torch. flapping a fan to create a gust of air. Basically, anything that alters light or the environment around the caster ends the effect.
- Following from that principle: Food carried at the time the spell is cast becomes invisible, but eating it and causing it to be digested alters the food and the spellcaster, ending the spell.
- Sound, smell, or vibrations don’t automatically reveal location, but high Intelligence or Wisdom characters have a 5+ on 1d6 chance of figuring out a location and can try to grab or attack the caster. Creatures with sharp senses also get a chance to find invisible targets, or automatically spot them if their hit dice are higher than the caster’s level.
- Creatures that don’t use vision at all, or can operate completely without vision, ignore invisibility. However, there may be alternative ways to conceal odor or sound, eliminating that as a means of detection.
- A successful attack on an invisible being, even one that does no damage like throwing a bucket of water in their direction, will end the invisibility.

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