Guan Xing, Son of the Dragon

Vigilance, First Strike
Guan Xing, Son of the Dragon gets +2/+2 and
can be cast by paying 1 less mana as long as you
control Guan Yu, Sainted Warrior or Zhang Bao,
Son of the phoenix on the battlefield.
My blade knows only justice!!
I will make you proud of me, father.