Most spells change something about the world once and then are done. Some of these effects are instant (lighting a fire); some of them change something and then the effects linger, eventually wearing away (toughening armor). Occasionally a spell requires the caster to be constantly attending to it. These spells require Tenacity. | Most spells change something about the world once and then are done. Some of these effects are instant (lighting a fire); some of them change something and then the effects linger, eventually wearing away (toughening armor). Occasionally a spell requires the caster to be constantly attending to it. These spells require Tenacity. |