Most spells state that the target must be something you can see. for example the magic missile spell says:
Each dart hits a creature of your choice that you can see within range.
But recently I saw that the guiding bolt spell does not. It states this:
Make a ranged spell attack against the target.
I was wondering how this targeting works against invisible creatures.
Let's say we are in a closed of room with an enemy, they turn invisible and we have no idea where they are. We know he is still in range because the room is very small.
Can I cast guiding bolt and just say, "I target the invisible creature in this room"? Or do I actually need to know where they are?