Ironwood (Arcana)
Level: Druid 3
Mana: 30. Persistant. Base Success: 100%.
  This magical spell transmutes an item made from iron into ironwood. Ironwood is a magical substance created by druids from iron. While becoming natural wood in almost every way, ironwood is as strong, heavy, and resistant to fire as steel. Spells or abilities that affect metal or iron (such as rusting or the Heat Metal spell) do not function on ironwood. Spells that affect wood do affect ironwood, although ironwood does not burn. Ironwood items are freely usable by druids because ironwood armour does not interfere with their primal spellcasting.