LazarusLong42
First Post
I know that little "Stay out" thing is only a bit of a warning, but really, stay out! Or you may ruin your fun 
So, here's the idea: The enemy in question is a goblin Wiz7/Rog5 (going up against 12th level characters). As the party approaches, his first action will be to cast greater invisibility. Now, he pulls out his trusty wand of scorching ray. Because he's invisible, the targets have no Dex bonus, and because it's a touch attack, their armor is useless, so only deflection and similar bonuses to AC matter--in other words, most PC's effective AC will be between 10 and 12.
His scorching ray almost always hits, and it does 4d6 fire + 3d6 sneak attack damage (within 30 ft, because it's an RTA), with no save. Two rays per shot. (I'm assuming he made the wand at 7th level.)
There are a number of counters available, especially to 12th level characters, such as true seeing, glitterdust, faerie fire, dust of appearance, and the like... but they may not have those immediately available.
So, the question is: Is this a rat-bastardly and cool idea, or is the inflicted damage too high (49 per round average with 80-90% chance of hitting) and therefore unbalanced?

So, here's the idea: The enemy in question is a goblin Wiz7/Rog5 (going up against 12th level characters). As the party approaches, his first action will be to cast greater invisibility. Now, he pulls out his trusty wand of scorching ray. Because he's invisible, the targets have no Dex bonus, and because it's a touch attack, their armor is useless, so only deflection and similar bonuses to AC matter--in other words, most PC's effective AC will be between 10 and 12.
His scorching ray almost always hits, and it does 4d6 fire + 3d6 sneak attack damage (within 30 ft, because it's an RTA), with no save. Two rays per shot. (I'm assuming he made the wand at 7th level.)
There are a number of counters available, especially to 12th level characters, such as true seeing, glitterdust, faerie fire, dust of appearance, and the like... but they may not have those immediately available.
So, the question is: Is this a rat-bastardly and cool idea, or is the inflicted damage too high (49 per round average with 80-90% chance of hitting) and therefore unbalanced?