Fighting in Azeroth
Fighting in WoW is very easy. You only have to aim a target and then use the right mouse button and your character will automatically fight his opponent. Whil fighting the opponent you can use your abilities to get him down much faster, but you have also abilities to heal you, too.
Every kind of class have got other abilities for fighting an opponent. Warrior classes have got many abilities to fight against their enemies in close combat. Mage classes can use great and powerful magic abilities to fight their opponents from far away. Rouges can fight their opponents out of the shadow when they are in stealth and hunters have abilities to fight their opponents from far behind with their bow or rifle.
It doesnt matter which class you have, you will have got a lot of opportunities to fight against your opponents in WoW.