Machine Rage When rolling the Reactor dice (see page 43 of the Adeptus Titanicus rulebook) a Tiger Eyes player counds both the Machine Spirit symbol and the blank facing on the dice as a trigger for awakening their Titan's machine spiri; the blank face does not increase the Reactor level.
However, if a Tiger Eyes player fails the Command check to quell the machine spirit, they may choose the result from the Awakened Machine Spirit table, rather than rolling randomly
If the Titan is a Corrupted Titan, it instead rolls two dice on the Awakened Entity table when called upon to do so, and chooses one of the results.
Many Faces of the Omnissiah In the first round of the game, any Tiger Eyes Titan may choose to forgo its activation in either the Movement phase and/or the Combat phase - in essence doing nothing for that phase but counting as one of the Tiger Eyes Player's activiations. For each phase sacrificed by a Titan, either 1 or2, that Titan may re-roll any one dice later in the game. A Titan chooses if it is sacrificing its phase when activated in that phase.