Citadel Siege [Commander 2016]

Set: Commander 2016 Type: Enchantment Rarity: Rare Cost: {2}{W}{W} 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.