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Clas Håkan Jesper Strömblad (born 28 November 1972) is a Swedish musician who is the guitarist of the bands Dimension Zero and Cyhra, and formerly of In Flames and The Resistance. He is best known as founder and former guitarist/drummer/keyboardist of the Swedish pioneering melodic death metal band In Flames, guitarist of the band Sinergy, bassist of Ceremonial Oath and drummer of HammerFall. In 2013 he joined MDM band Nightrage as a session guitarist.
In March 2004, Strömblad (along with Björn Gelotte) was ranked No. 70 out of 100 Greatest Heavy Metal Guitarists of all time by Guitar World.