Magic The Gathering Return to Ravnica Spoiler - Steam Vents

Steam Vents - #247/274 - Rare
Land - Island Mountain
 ({T}: Add {U} or {R} to your mana pool.)
As Steam Vents enters the battlefield, you may pay 2 life. If you don't, Steam Vents enters the battlefield tapped.  

Crafted with genius, energized with madness.

Illustrator: Yeong Hao Han
Source: Wizards of the Coast