Karlov of the Ghost Council [Commander 2015] Dissension and it has "{2}{U}{U}: Return

and it has "{2}{U}{U}: Return this creature to its owner's hand at the beginning of the next end step

When Tetzimoc enters the battlefield

Set: Amonkhet Invocations Type: Enchantment Rarity: Mythic Cost: {2}{U}{U} Tap an untapped creature you control: Tap target artifact

add an additional {B}

If the creature that spell becomes as it resolves has not been turned face up and would assign or deal damage

Karlov of the Ghost Council [Commander 2015] Dissension and it has "{2}{U}{U}: ReturnSet: Commander 2015 Type: Legendary Creature Spirit Advisor Rarity: Mythic Cost: {W}{B} Whenever you gain life, put two +1 +1 counters on Karlov of the Ghost Council. {W}{B}, Remove six +1 +1 counters from Karlov of the Ghost Council: Exile target creature. "Does Teysa think me blind to her scheming? Ambition runs in our family."