Infiniti2000 said:Oddly enough, per the rules, it would be whoever was the intended target.
It does not count as an attack. There's some ambiguity if you charge, however. But, IMO, unless the horse actually attacks at the end of a charge, I would not remove his invisibility.Macbrea said:If a caster riding on the back of a horse casts a spell does this count as an attack made by the horse? Thereby breaking it's invisibility or not.
The target isn't the square itself, it's something in the square. This is probably just a typo by you, but it's an important and subtle distinction. In any case, this provides a lot more vagueness than I originally realized. If you have to consider each creature that could be located in the square, do you also have to consider each object? I mean, objects are valid targets, so don't you have to consider anything and everything that could be attacked if you don't just consider the intended target?Hyp said:Since you're not attacking the Lone Ranger, he isn't 'the intended target'. The only target is the square...
Infiniti2000 said:Per the rules, the chair doesn't even have to be invisible. As long as the fighter "attacks into the square" anything in the square, visible or not, could be a target.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.