It's just in MTG almost all legendary characters have given names that match what they actually do, or feats they accomplished, etc. So it is just a little jarring. This is why 90%+ of legendary creatures have the comma (name, given name). Even without the comma, MTG characters usually have presumably given names.
Take Brion Stoutarm for example. His name is Brion. The name Stoutarm is likely a given one, based on the fact that he, well, has a Stout Arm which he uses to good effect.
arni brokenbrow is another good example, and arguably from a very similar vein of historical reference (the Norse warrior caste sort of thing).
Take Brion Stoutarm for example. His name is Brion. The name Stoutarm is likely a given one, based on the fact that he, well, has a Stout Arm which he uses to good effect.
arni brokenbrow is another good example, and arguably from a very similar vein of historical reference (the Norse warrior caste sort of thing).