Special Power Edit
From the "Royal Bonus" expansion, Fireball troops get one fireball for every magic source they occupy during redeployment. You may only get 4 fireballs, even if you get more than 4 magic sources. The next turn, the fireballs are used for conquering. Each fireball represents two tokens, so attacked a Lost Tribe region with a fireball would cost one token. More than one fireball may be used to conquer a region.
Fireballing gives you 5 tokens.