Summon [MENTION=13009]Paraxis[/MENTION]hehe...be kind...this one is not nearly as refined as the martial arts one was...
This seems hard to appraise, the value of being able to cast those two spells as rituals is tricky.
The biggest benefit is obviously being able to cast them without spending the spell slot.
Glyph of Warding would take an hour and ten minutes to cast, still use up 200 gp in materials, and rituals can't be cast using higher level slots so it will only hold 3rd level spells and lower.
Symbol, would take 11 minutes to cast, still use 1,000 gp in materials.
I don't see this being abused to much if gold is kept in check the cost of the consumed components means that even without expending a slot you won't be doing tons of these in one day. Unless that is the kind of campaign this is where high level characters could drop 50,0000 gp on a bunch of castings of symbol and not blink.
The second part about making consumable items just seems like a variant of making potions or spell scrolls, not sure how big of a deal that is, it would vary from campaign to campaign.
This part seems abusable "You determine how the item is triggered, and may relay that info to whomever you give a rune object to."
If the runecaster can set it so multiple runes trigger with one command word, or if the rune triggers on say the bearer getting a status condition like petrification or unconsciousness, than this ability is very powerful. If it is meant that it still takes an action to use a single rune tile than all is good it is just like a scroll or potion, just different.
The third part, nothing is there so can't weight in but if anyone ever wants to craft items in your world this feat would seem to be a must have ability.
It is very late for me at the moment 4am, and I haven't slept so my mind might be a little fuzzy will get some sleep and revisit this.
I would love to see a chain of spells all about runes and symbols, that basically make traps on the battlefield. I think something to look at would be magic items that store spells, and if memory serves there was some kind of runecaster for 3rd edition a prestige class I think maybe take some ideas from there, will look later.
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