Simic Basilisk (DIS) from Dissension, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Luca Zontini
• Card Text:
  Graft 3 (This creature comes into play with three +1/+1 counters on it. Whenever another creature comes into play, you may move a +1/+1 counter from this creature onto it.)
  1G: Until end of turn, target creature with a +1/+1 counter on it gains "Whenever this creature deals combat damage to a creature, destroy that creature at end of combat."