Feed Santa's Starving Reindeer was a single mission in December 2009. It was available on the Elders page, under the Vampire Santa headline. It cost 30 energy and an increasing amount of the Mission Items Reindeer Food for every successful mission. The reward for completing this mission was 2,000,000 blood to 5,000,000 blood and 60 experience points. By completing these missions, players earned the Army of Snow abilities. The event began December 16th 2009 and ran until January 6th 2010.
See: Reindeer Food
Vampire Santa is so busy with the Holiday Season, he's been neglecting his reindeer! Help Santa by feeding his reindeer once a day and giving it plenty of love. Reindeer require a lot of attention, so make sure you ask your friends to stop by and help you take care of it. Your reward depends on how naughty or nice you are to Santa's favorite pet.