SMS Emden

When SMS Emden enters the battlefield, exile it. Create a 3/3 red artifact creature token named White Emden that has lifelink and indestructible. Then create a 3/3 black artifact creature token named Black Emden that has deathtouch and indestructible.

Once exiled, return SMS Emden to the battlefield as an enchantment and it has: Whenever White Emden causes
you to gain life, put a +1/+1 counter on Black Emden. Whenever Black Emden sends a creature to a graveyard, put
a +1/+1 counter on White Emden.