I'm creating a sorcerer with arcane bloodline and taking a bonded longbow. This is a created race that has a spell like ability (displacement).
1/ Can I cast displacement through my Longbow? my interpretation is: most likely since SLAs count as spells for prestige class prereqs.
2/ If you know a SLA should you be able to cast it as a regular spell/add it to spells known once you reach the level requirement to cast the spell? Especially for spontaneous casters since its innate.
The first question is my most important, second is more food for thought.
1. You do not cast any spells through your weapon. You just need to be handling the weapon to cast your spells as a wizard or sorcerer(assuming you chose that bloodline).
If you are asking can you shoot someone with the bow and cast displacement on them as if it was a spell storing weapon the answer is no.
If you are asking can you cast displacement an extra time per day because the race makes it a 1/day ability the answer is no.
If you are asking do you need the bow to cast displacement the answer is no because displacement comes from your race, not from your class, and your arcane bond only affects spells that come from that class.
Even if you were a wizard/bard(another arcane class) multiclass then you could not case more arcane spells from your bard.
2. SLA's are not spontaneous spells. They just count as spells for many functions. They have no interaction with the arcane bonded item, since it is not a spell from your class.
I could have worded it better, when I say through the weapon its because I think the weapon is casting the spell while I'm holding it.
Ie: You are suddenly in melee while holding the bow and could use it to cast displacement on yourself defensively.
Agreed in the bloodline description it says: Once per day, your bonded item allows you to cast any one of your spells known. I do think SLAs could be learnable in the sorcerers case as follows:
forgive me for not being good at formatting etc.
A sorcerer's selection of spells is extremely limited. A sorcerer begins play knowing four 0-level spells and two 1st-level spells of her choice. At each new sorcerer level, she gains one or more new spells, as indicated on Table: Sorcerer Spells Known. (Unlike spells per day, the number of spells a sorcerer knows is not affected by her Charisma score; the numbers on Table: Sorcerer Spells Known are fixed.) These new spells can be common spells chosen from the sorcerer/wizard spell list, or they can be unusual spells that the sorcerer has gained some understanding of through study.
the last sentence seems like it could work. (oh and I do realize displacement is on the sorcerer list so eventually I could do this, It was my first thought of an example)