Decimator Beetle (AKH) from Amonkhet, available at 401 Games Canada.

• Rarity: Uncommon
• Finish: Normal
• Artist: Adrian Majkrzak
• Card Text:
  When Decimator Beetle enters the battlefield, put a -1/-1 counter on target creature you control.
  When Decimator Beetle attacks, remove a -1/-1 counter from target creature you control and put a -1/-1 counter on up to one target creature defending player controls.