One of the interesting aspects of having an alternate timelines is seeing how characters are different due to their experiences. There are three X-Men that attack the Sentinels primary base; Storm, Wolverine and Colossus. The one that is most changed under the rule of Sentinels is Storm. Storm was a gentle tender soul, not willing to take a life. She was effectively Mother Nature incarnate. The Days of Future Past storyline was the first time we saw a very different Storm. She is still kind, but she has lost her tenderness. Storm herself says she has become as hard, as ruthless, as merciless as Wolverine and she has become so numb she cant even hate herself. Storm has had a lot of screen time in the original film trilogy, but she hasnt had very much character development. The Days of Future Past storyline presents the perfect opportunity to explore the character of Storm in a fresh new way.