Avatar Roku, Firebender 112 (Avatar: The Last Airbender: Eternal-Legal)

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.

NM - $27.40
LP - $21.90
MP - $16.40
HP - $11.00
DMG - $5.50