Dark Cerebro

Dark Cerebro is a copy of Cerebro built by William Stryker in Weapon X's Alkali Lake base using the data stolen from X-Mansion's computer. Stryker has his son force Charles Xavier to use it to destroy mutants, but when Magneto intervenes, he changes the orders so that Xavier kills humans instead of mutants. Xavier is once again stopped when Storm and Nightcrawler save him and leave Jason in Dark Cerebro; the structure is destroyed with the base.