Pyrex said:
Hmm, monk should work pretty well.
The only problem is that in 3.5 Freedom of Movement pretty much completely negates your ability to grapple.
Monk's generally are a caster's worst nightmare, they have the touch AC, mobility, and saves to go toe to toe with casters.
You may want to include some kind of See Invisible Item, Good seems to be using it pretty extensively.
You might want to have a teleport item, Good doesn't seem to like to travel alone, and as Drakk has learned, lingering=death.
You might want a silence item, sneaking up on wizard and placing him in a zone of silence improves your chances of survivablity, and decreases his chances of casting teleport, natch, he will probably have a contingency in place though.
Personally, I would pick a Rogue/Assassin over Monk, with ALOT of cash, as you are going to need some very good stealth gear to get the drop on Good, and once you do, you aren't going to have alot rounds to take advantage of your attack, once Good zero's in on you, it seems they only need a round to put you to dirt.
I would make a Goblin Sniper, Rogue 5/Assassin10, with such items as Lens of True Seeing, Thieves Armor (+ to Hide and + to Sneak), a Ring of Mind Shield/Amulet of NonDetection, and a Helm of Teleportation. I would take all archery feats (Specifically, PB Shot, Far Shot, Precise Shot, Improved Precise Shot, and Improved Critical), and Buy the best poison you can afford, something nasty like Wyvren Poison or, if you can get your hands on it, Collossal Scorpion Venom (Possibly take one into your army and milk it for poison, Collosal are CR17's, so couldn't be taken, but Gargantuan Monstrous Scorpions are CR10, and would provide you with a source of DC23 1d10Con/1d10Con Poison).
Then just sit back with a +1 Keen Heavy Crossbow, and some Adamantine Bolts, Hiding and Greater Invis'd at a comfortable range of 240', and hit them with a Poison'd Bolt and TP out to safety. No, you aren't taking advantage of the assassin's death attack, or even your sneak attack, I suppose you could do it at 30', but it becomes alot more dangerous, the 240' attack can be done over and over again.
Some thoughts,
C. Rowe