Crowned Ceratok

"The best way to calm a rampaging ceratok is to wait until it dies of natural causes." -Ravnican Wisdom of those near the Gruul Territory

Ceratoks are terrifying in their own right, however a crowned Ceratok is akin to a miniature natural disaster. The gruul embed Green Gemstones in their foreheads that grant them magical endurance power and toughness.

Refferences:

https://scryfall.com/card/gtc/117/crowned-ceratok