Seaking - 59/147 - Uncommon from Aquapolis, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Sumiyoshi Kizuki
• Card Text:
  [2] Flail (10x)
  Does 10 damage times the number of damage counters on Seaking.
  [2W] Undulate (30)
  Flip a coin. If heads, during your opponent's next turn, prevent all effects of attacks, including damage, done to Seaking.