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With the advent of large-scale optical photometric monitoring and exoplanet search programs comma the number of stars with known stellar cycles has rapidly grown. In parallel comma advances in theoretical modeling are leading to a revolution in our understanding of stellar structure and magnetic field generation in late-type stars. Still comma many questions remain comma and new puzzles have arisen comma such as the existence of cycles in fully convective stars. X-ray emission is a key diagnostic of stellar magnetic activity comma and X-ray cycle amplitudes are much larger than in the optical comma but of the hundreds of stars with confirmed cycles comma only seven have been monitored in X rays. We request XMM-Newton observations of three stars that will significantly broaden the X-ray perspective on stellar cycles.