Lord Shiva is often depicted carrying a trident but undoubtedly, his most powerful weapon is his Third Eye

Many Hindu Gods and Goddesses carry weapons, and Lord Shiva is often depicted carrying a trident, as the three tips of this weapon represent the creation, protection (or sustaining), and destruction of the universe. Because he is so closely associated with ascetics, who renounce the world in search of spiritual enlightenment, Shiva is often depicted carrying an ax, which is to symbolize the severing of ties to the material world. But undoubtedly Shiva’s most powerful weapon is his Third Eye in the middle of his forehead, which, when opened fully, can incinerate man, demon, or god....