With the DNA of several powerful characters in the MCU, including Thor, G'iah has become an immensely formidable superhero. While she may possess extraordinary abilities, the worthiness to lift Thor's enchanted hammer, Mjolnir, is typically determined by one's character and integrity. As such, G'iah's ability to wield Mjolnir would ultimately depend on whether she is deemed worthy by the enchantment placed upon the hammer.