Doom turned Marsha into a fiery being called Volcano and made Mary a superhuman warrior he called Titania.
All of these gifts made her formidable match for the woman who would become her archenemy.
Like the root word of her codename suggests, Titania is very strong, initially having the ability to lift a total of 85 tons and, later, up to 100 tons.
The powerful Latverian monarch and sorcerer, who often butts heads with the Fantastic Four, decided to recruit the ladies into his army and give them powers.