Magic The Gathering - Avatar - The Last Airbender Eternal - Avatar Roku, Firebender - 0112

Whenever a player attacks, add six {R}. Until end of combat, you don't lose this mana as steps end. {R}{R}{R}: Target creature gets +3/+0 until end of turn.

Avatar Roku, Firebender is a Mythic, Legendary Creature - Human Avatar card from the Magic The Gathering set Avatar: The Last Airbender Eternal (MTGSC-TLE-0112)