Mark was born in Nashville, TN. He was born there with his sisters and brothers in a family of Country Singers. He never didn't ever want to be part of the music business. His family was disappointed in their son. He was one of the only ones in his family of ten who didn't play music. What he did love though was soccer. He played it faithfully every day, while his family played concerts at different places. He wasn't aware of his abilities until he was thirteen, when he was injured in a game of soccer, in a few minutes he was completely healed. He was curious so when he got home he cut his finger once, it healed in seconds. He then cut off the tip of his finger, it didn't heal automatically. He ran to the sink and he was losing blood like crazy. But the more blood he lost, his finger seemed to grow back in the place slowly. He was amazed at his power, he told his parents that night. They were disgusted at their mutant son. They sent him too Xavier's School for the gifted. There he was taught to use his powers like a hero, but then a meteor crashed onto the property of Xavier's School. Mark was the first to find it, and the symbiosis possessed him. His thoughts clashed with the creature but the creature ended up winning. Marx left the school, and went in seek of his own life, then he found the Thunderbolts, where he found Vertebrae, who welcomed him.