The Kar'dem'Rah

Partner with King Pahratu of Kenuka
Mentor, defender
If you have 20 or less life, the Kar'dem'Rah looses defender.
Pay {x} and sacrifice X Human and/or Soldier tokens. The Kar'dem'Rah gains power and toughness equal to the amount of each token's power and toughness until end of turn.