I want to suggest a Horoscope Rereadings:
1,000 ryo per
Encourages people to grind
Limit of 3 Rereading every 2 weeks
Does not roll over into other weeks and prevents people from spamming the NPC
A List of Horoscopes and what each gives to each stat.
More so for lore purposes, something like a newspaper article or a poster in each village so new players know about it beforehand.
My biggest question when talking about Charms on this game is; why haven't I known about this before making my main? When you start you make your character, given an introduction, walked through the basics of Combat and then tested to be given the title Genin.
I'm unsure how many players have done this, but it seems that a good lot of new players have had no prior knowledge of charms when starting and before long their lvl 25 halfway through getting all their jutsu then sudden have the topic of charms being brought up out of nowhere. It's all fine and cool learning that there is an item in the game that can boost 1 or all of your current stats, but the real problem comes in when they get a flat 5 to agility on their Earth Ninja; this practically focuses the player to choose their second mastery regardless of the players intention, stripping away that small bit of freedom.
Then they only have 2 options: Deal with it or Reset. New players at this point don't have the Ryo to spend 10 times resetting to get the best charm that'll suit their play style, leaving out a good portion of what make pvp in this game fun.