Board Thread:General Discussion/@comment-31981697-20170810103338/@comment-13682699-20170930150759

Gaster built them and likely helped Sans use them, but it doesn't automatically make Sans a better combatant. It also doesn't necessarily make Gaster/Sans more powerful than any royal guard. They simply have tools they can use to their advantage.

In a straight up fight, Sans would lose to a LOT of people unless they possessed heavy sins because, despite his ability to dodge his real power comes from his KR ability. Without it, he can only cause 1 damage. Not only that but he will also tire out far quicker than anyone.