Arms Warrior is top of the pack in wow classic gold regards to PvP. Once you get going you'll become an unstoppable killing machine -- you may have to get friendly with a healer to be at your best. With Deadly Strike being one of, if not the best anti-healing abilities in the sport, Arms excels in taking out healers or people being healed by one.
31/20/0 is the way to go to Deadly Strike from Arms and Enrage alongside Piercing Howl which gives you some control over classes that are slick out of Fury. Just stay away from fighting with with a frost mage 1v1, it might make you regret playing with a Warrior and likely won't end.
Warlock will be the bane of all in regards to PvP -- be it draining your aims HP, fearing people (for way too long) to dealing out big damage to endless targets. The build has two survival abilities with Curse of Exhaustion that ought to help you restrain melee players from getting too close and Siphon Life which drains HP from the target and gives you it.
On the surface, it may just seem like the game's map inserted a bunch of pumpkins to buy classic wow gold observe the season, but there is really much more to it.
According to the lore of Warcraft, once the Undead race broke away in the leadership of the Lich King Hallow's End is supposed to celebrate. They celebrate by burning a giant wicker man, which was followed by a speech in their own queen, Lady Sylvanas Windrunner.
Then, the ash were smeared by the undead onto their faces from the burnt wicker guy. It's unclear why other races celebrate the occasion, especially those belonging to the Alliance, but it's most likely because Blizzard wanted to give every race a event.