Brighthearth Banneret (MOR) from Morningtide, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Ralph Horsley
• Card Text:
  Elemental spells and Warrior spells you play cost 1 less to play.
  Reinforce 1—1R (1R, Discard this card: Put a +1/+1 counter on target creature.)