This page showcases Kabam's different Holiday Dragon Armor sets.
Independence Day Armor
July 2014 - Great Dragon (Water, Nightshade, Earth, and Fire Dragon sets not available)
Armor set has set bonuses: +5% Life with 2 pieces equipped & +15% Melee Attack and +15% Ranged Attack with 4 pieces equipped.
New Year (Lucky Armor Chest)
January 2014 - Great Dragon (Water and Nightshade Dragon also, just not pictured.
First armor set launched that has a set bonuses: +5% Life with 2 Pieces equipped & +15% Melee Attack with 4 Pieces equipped.
Chinese New Year
January 2014 - Great Dragon
January 2014 - Water Dragon
January 2014 - Nightshade Dragon
December 2013 - Great Dragon
December 2013 - Water Dragon
December 2013 - Nightshade Dragon