Somerset pulled off a sensational last-ball one-wicket win against reigning IPL Champions and hosts Deccan Chargers in a pulsating Group A match of the Champions League Twenty20 tournament in Hyderabad last night.Chasing 154 to win, the English side was tottering at 99 for seven at one stage but Thomas and Hildreth snatched victory from the jaws of defeat by raising a superb 50-run stand for the eighth wicket. Earlier in another match, Cape Cobras beat Otaga Volts by 54 runs.