The Magnus vs. Apocalypse

Remember Warlocke form the New Mutants. His dad was one of the more powerfull things in Marvel. He could probely drain Apocalypse of his energy and is strong enough to rip planets apart so could rip him to tatters. It took Cypher to decode his technorganic ageline to defeat him. Warlockes society is based on father/son destruction so that gave Cypher a lead. He regressed Magnus into non creation.

You mean Magus...but yes, I believe that Magus would win...

apocalypse no problem

Apocalypse can arrange the structure of his molecules at will to increase his mass and strength, or assume a different shape or form.

Magneto could potentially limit his ability to do this by manipulating the magnetism between his atoms; Draw.

This is Magus, not Magnus. The Techno-organic being.

Apocalypse wins...an ass kicking.

http://www.marveldirectory.com/individuals/m/magus.htm

"Strength level: At full power the Magus possesses enough strength to rend an entire star in two and hurl part of it through space."

Apocalypse can't recuperate without his sleep.
Magus could disrupt that with a radio antenna same as Ironman could do so with his own inventions.