Aura system

Aura system spells are a type of group buff spell that are cast once and remain active until the caster STOPs it, dies, or switches to another aura type. The spell benefits extend to the caster's group.

The caster of the aura can only personally maintain one effect at a time, and only one aura of a given type may be active on a person at a time, so two people grouped and casting the same aura will not benefit further from the other's aura. Multiple casters grouped together and casting different auras can all benefit from each other's auras.

An example of an aura is the Paladin spell Divine Shield (1609).