5 promo cards for Mage Knight Board Game, first released as part of the Mage Knight: Ultimate Edition, later sold separately through WizKids online store. 4 cards are Advanced Action cards, which can be charged with 2 different colours, the last card being an artefact. Four of the cards are dual colored: Explosive Bolt Chilling Stare Rush of Adrenaline Power of Crystals Each of these cards allow you to spend either type of mana shown on the card in order to play them or activate their stronger effect. They also count as both colors for certain effects. The fifth card is a new artifact, the Mysterious Box.