Cao Zhen
Cao Zhen 曹真
Tiger Riding in Front 虎豹骑之首

Bird of Prey 鸷勇
When Cao Zhen's blood is three or less, he can use X additional attacks.  When his blood is two or less, he can use cards with the the number X as wine.  When his blood is one or less, he can use any hand card with the number X as duel.  X is the number of health that Cao Zhen is missing.  
  • If Cao Zhen is king with a maximum health of five, he does not get any abilities since he has four health.  The calculations for X will be different however.
  • The measuring for X occurs whenever a card is used.  If Cao Zhen takes damage, X changes immediately.