Firstly, sorry if this has already been answered - I looked but my wife will tell you that doesn't count for much ...
Okay, so invulnerability potions are excluded from Road to legend as they can be a bit unbalancing ... but what about invisibility potions? I would have guessed that the same logic might apply (i.e. excluded from RtL), but there is an invisibility potion in the new rumour level.
Thoughts anyone?