Bioessence Hydra (WAR) from War of the Spark, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Mathias Kollros
• Card Text:
  Trample
  Bioessence Hydra enters the battlefield with a +1/+1 counter on it for each loyalty counter on planeswalkers you control.
  Whenever one or more loyalty counters are put on planeswalkers you control, put that many +1/+1 counters on Bioessence Hydra.