At the beginning of each turn of the controlling player, Galrauch must take a Leadership test. If the test is passed, Galrauch will be controlled as normal, but if the test is failed, the ancient spirit of the Dragon will surface again for an instant.
The test failed by rolling an 11 (or less, if any modifier applies): Struggle.
The Dragon will not move, cast spells or use his breath weapons. In the Close Combat phase he will direct half of his attack against himself. If the Dragon is already engaged in close combat, the remaining half of his attacks are carried out as normal, as decided by the controlling player. The wounds caused by the Dragon against himself are added to the enemy's score when working out the combat's resolution.
The test failed by rolling a natural 12 (ie, double 6, regardless of modifiers): Revenge!
The Dragon will not move, cast spells or use his breath weapons. In the Close Combat phase he will not attack at all.
In his opponent's turn, the Dragon will be controlled by his opponent exactly as if he was his own. If the Dragon was already engaged in close combat with his opponent's troops, he can be moved out of combat freely.
He cannot use the Breath of Change when controlled by an opponent in this way.
At the start of the Chaos player's turn, the Dragon must take another Leadership test as normal, and he will return to the original owner's control if he passes.