As a world of warcraft player , do u know what is the retribution spec ? let me tell u .
Paladins really come down to three different philosophies. Holy paladins are the ones who come in after a disaster to help heal those hurt by the battle and rebuild the community. Protection paladins protect those who are under attack and act as the stalwart defenders of the land by holding back the hordes of fiends from getting to those they are safeguarding.

Retribution paladins are a bit different. They are the ones asked to do the dirty work. They are the ones who delve into the den of devils, decimating and defeating the dastardly demons. They are the commandos of the church and are trained to unleash their righteous vengeance on those who dare harm the innocent. Retribution paladins wear shining plate armor and carry massive, two-handed weapons that they use to deliver devastating attacks of holy might.

All fluff text aside, retribution is a damage-dealing spec. You're not meant to heal or tank, but instead to just sit there and beat things to death with a big, slow, two-handed weapon. You're also a plate wearer, so you'll be able to take the hits from being in melee range a little bit better than other classes.

Like all paladins, you use both mana and a new resource called holy power. This holy power resource works a lot like a rogue's combo points. However, retribution paladins are the spec that focus the most on it. We've got some abilities and talents that add holy power and other abilities that use that holy power. Otherwise, our abilities run off of mana.
hope u have a good day !