Increasing Savagery (DDS) from Duel Decks: Mind vs. Might, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Steve Prescott
• Card Text:
  Put five +1/+1 counters on target creature. If Increasing Savagery was cast from a graveyard, put ten +1/+1 counters on that creature instead.
  Flashback 5GG (You may cast this card from your graveyard for its flashback cost. Then exile it.)