Can you give us a brief overview of the Dajjal, the Beast, and Gog and Magog?

The Dajjal, Gog and Magog, and the Beast are mentioned as major signs of the Hour. The Dajjal is a human being who will emerge at the end of time, claiming divinity and deceiving people with his extraordinary feats, and he will perish at the hands of Jesus son of Mary. Gog and Magog are two disbelieving tribes who will emerge after the Dajjal, causing corruption on Earth. Allah will destroy them with worms, and their corpses will be removed by birds and rain. The Beast is a mighty creature that will emerge at the end of time, speaking to people and distinguishing the believer from the disbeliever. A Muslim must believe in and affirm these signs.