Colossus of Galahenatt

Cumulative Upkeep {r} (At the beginning of your upkeep, if this permanent is on the battlefield, put an age counter on this permanent. Then you may pay {r} for each age counter on it. If you don't, sacrifice it.)
The horrific creatures of Galahenatt come in all shapes and sizes. The most feared is most assuredly the colossus, a beast of unimaginable strength and size.
- Excerpt from "Your Guide to Creatures"