Serra's First

Flying, vigilance
Hope (If this creature would deal combat damage this turn, you may instead choose to prevent all combat damage this creature would assign. If damage is prevented this way, you may gain X life, where X is two times the amount of damage prevented this way.)
Serra's First's power and toughness are each equal to your devotion to white. If Serra's First's power and toughness are less than six, Serra's First has indestructible.