Assassin Kratos

If Kratos became an assassin, he'd be an unstoppable force, combining his raw Spartan strength, godly powers (like the Blades of Chaos), and newfound Norse wisdom for stealthy, efficient, but utterly brutal kills, transforming from a direct rage-fueled warrior into a quiet, inevitable doom for his targets, likely becoming a legendary figure or feared phantom, potentially even surpassing his rage-fueled self in effectiveness by leveraging planning and precision with his overwhelming power.