White spells cost an additional to cast.
White enchantments with activation costs require an additional to use. The Limited and Unlimited versions of this card only affected the casting of white spells and the use of Circles of Protection. The Revised edition card affects any white spells and the use of white enchantments with activation costs. Players with Holy Armor and such are in for a surprise. Note that this does not include upkeep costs, and that the Revised card will not affect Circles which are xxxxlaced to another color.