Citadel Siege (MIC) from Midnight Hunt Commander, available at 401 Games Canada.

• Rarity: Rare
• Finish: Normal
• Artist: Steven Belledin
• Card Text:
  As Citadel Siege enters the battlefield, choose Khans or Dragons.
  • Khans — At the beginning of combat on your turn, put two +1/+1 counters on target creature you control.
  • Dragons — At the beginning of combat on each opponent's turn, tap target creature that player controls.