When Spara's Bodyguard enters the battlefield, you may choose a creature card in your hand. If you do, it perpetually gains "This creature enters the battlefield with an additional shield (If the creature would be dealt damage or destroyed, remove a shield counter from it instead.) counter on it." Otherwise, put a shield (If the creature would be dealt damage or destroyed, remove a shield counter from it instead.) counter on Spara's Bodyguard. At the beginning of each combat, Spara's Bodyguard gets +1/+1 until end of turn for each shield (If the creature would be dealt damage or destroyed, remove a shield counter from it instead.) counter among other creatures you control.