When incorporated into the casting of a damage-inflicting Spell (cast from the character card, not a scroll or magic item), this dust increases the damage of the Spell by +1. This dust has no effect on Spells which do not inflict HP damage.
No more than 1 dust (regardless of name) may be used per Spell.
Casting a Spell with Dust of the Wood Fae does not affect the casting time of the Spell.