User blog comment:B214/Question and Answers 6/@comment-207.96.205.3-20160806233622/@comment-9595671-20160807012450

They seem to be able to go pretty far as shown by the Downfall Spear that Azazel used against Katerea, though their only limitation is they can't seem to use a Balance Breaker.

For example, if in a normal one on one sword fight, Tomoe's Blazer Shining Aura Darkness Samurai Sword would likely lose against Kiba's Holy Devil sword.