Transcend Language (Sp): At 3rd level, three times per day, a herald squire can cast tongues on herself, using her herald squire level as her caster level. The effects of this ability last for a number of rounds equal to her herald squire level.
Oddly enough, it does not state that this is a spell-like ability. I can only assume then that the Herald Squire is indeed casting this spell.
Question 1: Because it is a spell targeting "You" this works with Share Spells correct?
Question 2: Does it count as Arcane or Divine? If arcane, does he then qualify for Arcane Strike? Does he have to contend with spell failure chance?
Question 3: What ability score would be used for the DC check, in the case of things like a Superstition Barbarian who can't be a willing target for the harmless spell?
Question 4: How would it interact with Metamagic? Could one Extend Spell it? If so, because the ability is not running on spell slots, what happens?
Question 5: Though there is no current feat which says "ability to cast 3rd level spells" as a requirement, only 1st and 5th, should such a feat appear in the future, could they take it?
Question 6: Since it says "using her herald squire level as her caster level" but does not specify "for this effect/ability" as spell-likes do, this is indeed conferring a general application caster level to the Herald, correct? So he could take item creation feats or the like?
So, it is a spell-like ability. That's what (Sp) means. (Ex) is extraordinary, (Su) is supernatural.
Okay, but a Wizard's Arcane Bond is (Su), but it's not a spell-like. Since it never says this is a spell-like, but rather says that he is casting the spell, does this not mean that he is indeed casting not using a spell-like?
Edit: Oh. Wait. Sp not Su. Oh. Okay, nevermind. The question of which ability score it uses is still left unanswered, but I suppose that's such a niche situation (unwilling target of "you") that it's not worth dealing with.