Since Michael became the Lone Hunter in the Novix Galaxy, the God Curses and Michael had devised multiple plans to deal with powerful Hyumans and strategies to break the balance in the War of Titans. Their solution was both simple and very risky at the same time.
Fenrir goes all out. He merely used as much of his Divinity as Michael's Divine Shell could handle. That wasn't much power for a proper Divinity, even after several hundred Serpent Seals dramatically augmented his physical vessel. Still, Michael's preparations had been thorough enough to complete everything to alter the tides of the Titan War.
[This is going to be so fun!] Fenrir howled as his Divinity continued flushing through Michael. Michael groaned in pain, and he was forced to use River of Vigor's superior healing serum to regenerate while his body was melting, but it worked out. Their plan succeeded.