Using counterspell while invisible, will turn me visible?
I believe so, because I think is a lot like targeting a foe with a spell... sort of, but I'm not sure.
"Counterspell: When dispel magic is used in this way, the spell targets a spellcaster and is cast as a counterspell. Unlike a true counterspell, however, dispel magic may not work; you must make a dispel check to counter the other spellcaster's spell."
and Invisibility reads:
"For purposes of this spell, an attack includes any spell targeting a foe or whose area or effect includes a foe."
You become visable.
yep... I suspected it.
thanks for the confirmation
While Randy describes how counterspell works with dispel magic, it is essentially the same thing with any counterspell. Per the PRD you have to target a foe (enemy spellcaster) and cast a spell against the foe (and the foe has to be in range of your spell). Since you have to target the foe with your counterspell (fireball vs. fireball, for instance) then you would lose invisibility.
Per the PRD:
To use a counterspell, you must select an opponent as the target of the counterspell. You do this by choosing to ready an action. In doing so, you elect to wait to complete your action until your opponent tries to cast a spell. You may still move at your normal speed, since ready is a standard action.
If the target of your counterspell tries to cast a spell, make a Spellcraft check (DC 15 + the spell's level). This check is a free action. If the check succeeds, you correctly identify the opponent's spell and can attempt to counter it. If the check fails, you can't do either of these things.
To complete the action, you must then cast an appropriate spell. As a general rule, a spell can only counter itself. If you are able to cast the same spell and you have it prepared (or have a slot of the appropriate level available), you cast it, creating a counterspell effect. If the target is within range, both spells automatically negate each other with no other results.
Much better laid out Dosgamer.
R
It was interesting to me to read that you have to actually target a foe with your counterspell. My initial inclination would be that you are targeting their spell effect and thus would not lose invisibility. Not the case!
I would have agreed with you as well. Seems like you should mess the spell up and not the caster. lol