I posted the same question on the Story Games forum, but it can’t hurt to ask it here, as well. I finally read World of Dungeons and the Planarch Codex, which I’m really excited about.
I’m currently wondering about the heritage moves. I can understand why you would want to use the hold mechanics in standard Dungeon World, sort of like the Mutant’s move in Adventures on Dungeon Planet; but in WoDu, couldn’t you just state the heritage moves and use them without limit, just like any other “do something risky” move? Limiting their uses seems artificial; while it seems that their limitless use would make heritage moves ultra-lite playbook moves.