Steeling Stance (DIS) from Dissension, available at 401 Games Canada.

• Rarity: Common
• Finish: Normal
• Artist: Randy Gallegos
• Card Text:
  Creatures you control get +1/+1 until end of turn.
  Forecast — W, Reveal Steeling Stance from your hand: Target creature gets +1/+1 until end of turn. (Play this ability only during your upkeep and only once each turn.)