Gix - Shatters boulder with forehead beam

The rubine gem in the demon's bulging forehead shone bright. A thumbnail-sized spot of the same color appeared on Urza's breast. Heartbeats later, a boulder, Urza high and Urza wide, bilious green and glassy, stood where Urza had stood between Xantcha and Ratepe. The boulder blew apart an instant later. Fists of stone hammered Xantcha from face to toes and threw her back against the chamber wall. Ratepe was on the floor, covered in a thick layer of dust. Two counterspinning coils of fire and light whirled around the demon until he spread his arms to vanquish them.

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Planeswalker, Chapter 24