Witchwarg Fur
Activate Cast a Spell
The pelt of a witchwarg stays cold long after it leaves the creature's body. A tuft of this fur can freeze a Fire Shield spell into solid ice, inverting its usual effects. The spell's fire trait is replaced with the cold trait, you gain resistance to fire damage and environmental heat effects (instead of cold effects), the shield is immune to cold damage instead of fire damage, and its Hardness is halved against fire effects. The damage you deal to creatures that touch you or hit you with a melee or unarmed attack has its type changed to cold.
Traits
Items that have the catalyst trait are consumable material spell components that alter or magnify specific spells. Activating a catalyst is part of Casting the Spell. The catalyst might increase the number of actions required to Cast the Spell, as indicated in the catalyst's Activate entry. Additionally, the spell gains the manipulate trait if it didn't already. Because the catalyst becomes part of the spell, you can draw the catalyst as part of Casting the Spell.
An item with this trait can be used only once. Unless stated otherwise, it's destroyed after activation. Consumable items include alchemical items and magical consumables such as scrolls and talismans. When a character creates consumable items, they can make them in batches of four.
Something with the magical trait is imbued with magical energies not tied to a specific tradition of magic. Some items or effects are closely tied to a particular tradition of magic. In these cases, the item has the arcane, divine, occult, or primal trait instead of the magical trait. Any of these traits indicate that the item is magical.