I'm currently running a homebrew pathfinder campaign. The players are in the middle of adventure called "Mako's Missing Tome". Mako is a powerful wizard that the PCs owed a favour. Unbeknownst to the players, BBEG hired a thieves guild to steal Mako's "Tome of Inventions". As payment for the favour the PCs were tasked to retrieve the book from the thieves guild's hideout and return it to him.
In my group I have a wizard who has already expressed his plans to examine the book and attempt to craft whatever magic items reside within. I also have a Bard who focuses on ranged combat with a crossbow. As well as a Barbarian, Druid and Paladin but they are less relevant. All characters are currently level 4, they will be going to level 5 at the end of this adventure. This is a long running campaign expected to reach at least level 20.
My question concerns the magic item that the book contains. It must meet a few criteria:
- Must be a Magical Weapon of some sort, something that would interest the BBEG enough to bother getting it stolen
- Must be rare and inventive, Mako is rather eccentric so nothing too commonplace
- Must be expensive/difficult to create, otherwise others would have made it already
Context given in case this is a X-Y question. But mainly I wanted to ask if there are any issues with the item I'm considering.
My idea would be that Mako has found a way to add the spell storing ability to ranged ammunition.
A spell storing weapon allows a spellcaster to store a single targeted spell of up to 3rd level in the weapon. ... This special ability can only be placed on melee weapons.
What effect will allowing this in my game have? My hope is that it will funnel some of the Wizard/Druid's spellcasting ability into the Bard who sometimes struggles to be effective in combat. Are there other effects that I should be concerned about before adding this?