Just wanted to add something to this thread. The skill for "Heart Power" is 36 in Hex, if you're building weapons. It looks like that skill didn't exist in Legends, or if it did it wasn't included in the pastebin. I'll edit or post when I figure out the skill number for Legendary (boosts weapon attack power to 560)
EDIT: Just noticed that this was posted earlier in the thread. Sorry. Sleepy.
I attempted to edit in everyone's level 4 weapon so I can unlock the Master Sword, but it appears you need to get it as a drop or a reward to have it properly register. Shame. Oh well, back to the grind, at least I have one of the skills (10k) unlocked for having all 1-3, just need a lot of level 4.
Well, I looked at the 3DS thread and it looks like Legendary is indeed the skill that others get that's 10k purple until you've fully unlocked the master sword. I've unlocked one of the skills, but don't know the offsets for Master Sword offsets. I'd need identical saves with them un-purple-locked to try to compare them and even then I don't think it would work very well. Guess I'm farming level 4 weapons, but if you want to have your weapons be more powerful change the 03 at the end of the weapon hex to 13. I dunno if you have to slot the actual Legendary skill. I don't think it's the same skill ID as the ones on the Master Sword, but I don't know the skill ID. I'll unlock it normally and report back, but it means I have to do Termina/Twilight/etc. So it'll be a bit.