What kind of magic or powers did the Olympians to defeat cronus?

The Olympians, led by Zeus, used a combination of strategy, alliance, and divine powers to defeat Cronus. They released the Cyclopes and the Hecatoncheires from Tartarus, who provided them with powerful weapons like Zeus's thunderbolt, Poseidon's trident, and Hades' helmet of darkness. Their collective strength and unity, along with their newfound weapons, allowed them to overpower Cronus and his Titans in the Titanomachy, ultimately establishing their reign on Mount Olympus.