What sorts of spells count as spells “on”?
Spells with instantaneous effects (e.g., Awaken, Deathtouch) never count as spells “on”. Non-instantaneous spells fall into four basic categories. Spells that require fatigue to maintain (e.g., Charm, Light) are temporary spells. Spells that have ongoing effects that require no fatigue to maintain, but which have a limited effective duration (e.g., Bless, Continual Light, Curse), are lasting spells. Spells that have ongoing, permanent effects (e.g., Enslave, Great Geas, Zombie) are permanent spells. Finally, there are enchantments. Of these, only temporary spells count as spells “on”. For the record, Flesh to Stone, Major Healing and Resurrection are all “instantaneous”. They produce a momentary pulse of magic that leaves behind a permanent non-magical effect (a statue, healed wound or living human). For a spell to be “lasting” or “permanent,” the ongoing effect must be magical, not mundane.
