In Thanos' first appearance in the pages of Marvel Comics, the Mad Titan proved he didn't need an Infinity Gauntlet to show off his incredible powers. While fighting against Drax the Destroyer in Iron Man #55, the supervillain managed to level an entire planet during their battle, revealing the true strength behind Thanos and just how unstoppable he was even without the Infinity Stones at his disposal.
Even without the Infinity Gauntlet, Thanos should never be underestimated. The son of Eternals and born with the Deviant gene giving him his purple appearance, Thanos is so much more than just a wielder of the Infinity Stones. His Eternal heritage gives him several superhuman abilities and powers, including superstrength, cosmic regeneration, and matter manipulation. Giving the Mad Titan even more power is his vast intellect, as he has used his genius-level smarts to become a master tactician, inventor, and destroyer of worlds. Of course, Thanos is stronger with the Infinity Stones, but his debut appearance showed off his incredible powers and that even without them, he's a force to be reckoned with in the Marvel Universe.
Related: What Happened To The Infinity Stones After The Illuminati Beat Thanos?
In Iron Man #55 by Jim Starlin, Mike Freidrich, Mike Esposito, John Costanza, and Roy Thomas, readers are introduced to both Drax the Destroyer and Thanos. Drax's origin, where Thanos' father Mentor gave him incredible powers to destroy his son, showcases their first fight. On a planet far from Earth's solar system, Thanos and Drax exchange blows in an epic, world-shaking battle. However, during the exchange, Thanos' powers combined with Drax's might resulted in the planet they fought on exploding, leading to the hero's
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