Enchant creature When Divine Favor enters the battlefield, you gain 3 life. Enchanted creature gets +1/+3.
With an armory of light, even the squire may champion her people.
Official Rulings for Divine Favor
9/22/2011 : If the creature targeted by Divine Favor is an illegal target when Divine Favor tries to resolve, Divine Favor will be countered. It won't enter the battlefield and its enters-the-battlefield ability won't trigger.