Okay, Blazer can!
Cinnamon is trotting in the forest, as a fox, and stops and sees them...doing something dirty (XD)..and turns back into herself, a cat, and asks Mountain what shes doing, then Mountain doesn't reply, then Blazer threatens, and Cinnamon gets scared and runs, and Blazer starts to chase her and you know the next xD
And if you want, Cinnamon could sneak out of camp one night, sees Blazer, turns into a large animal (like a bear or fox or something) and kills him? And Mountain is devastated, and Cinnamon later announces to the clan, "A kittypet has been spotted, outside territory, stealing prey. I killed him." And Mountain freaks out on her in front of the whole clan?