Lauf Terribilis, XXIII-Legion

First Strike, Ward-Pay 2 life.

Whenever your opponent gain life during your turn, you gain that much life.

Whenever you cast Legendary spell, you may pay 3 life, if you do, Bury-Legion (Create a Cursed XXIII. black artifact creature token with
"As long as you have 10 or less life, Cursed XXIII. has Indestructible and Lifelink.").