It's a change in tact, "Traveler's" are Thief-Mage Hybrids (with the Steal Equipment being given to the later to be introduced "Treasure Hunter" character.) They base on befuddling their enemies, buffing themselves, and stealing money (which is actually important, since I plan to remove "Bonus Money" from all missions) One of their skills is "Rich" (if you notice when you cast "Lich" the game will call it "Rich" even in the spell quotes, it's a jest on that front).

Dycedarg's Elder Brother is a Large mistranslation in the normal game, when you go to fight Dycedarg, it says "Defeat Dycedarg's Elder Brother" It's just something fans throw around from time to time, couldn't find a way to keep the plot serious and include anything to deal with that though.