D'Ken, who was a very corrupt leader, attempted to use a powerful crystal, known as the M'Krann Crystal to take over the universe, but the X-Men and D'Ken's younger sister, Lilandra killed him before he was able to carry out his plans.
D'Ken attempted to use a powerful crystal. A powerful crystal was known as the M'Krann Crystal. This was to take over the universe. D'Ken was a very corrupt leader. The X-Men and D'Ken's younger sister, Lilandra killed him. He was able to carry out his plans.