I find it interesting that some people freak out about male medusas and male harpies, but have no problem with female minotaurs.
Retcon explanation: The mythological lamia had consumed the form of a feytouched yuan-ti woman. ;)
Also, as far as I know there is not a double damage mechanic in 4e in any other circumstance, so house-ruling it into minions would be two house rules: That minions can crit AND that their crits do double damage.
Invisible flanking gnome, eh? Sounds like it's ripe for all sorts of fun.
"wooooo, this is the ghost of your father...."
"You call that an attack? A half-dead gibberling could do better."
"I can see your underpants!"
I think getting heckled by an invisible enemy right behind you would count...
Because the game already has centaurs. Oh, wait, not in the MM....
Seriously though, I vaguely recall some design article mentioning it; something about letting the Lamia be more of an infiltrator and less of a beastwoman.
The official rule is that a minion's crit is exactly the same as a minion's regular damage.
If you are going to give minions the ability to crit, then you should reward players with something when they themselves crit a minion. How about when you crit a minion, another minion of your choice...
It's no mystery. They took out all those features, such as animal companions and cohorts, that would give a player "two characters", which amounts to a double number of actions. This is generally a good idea, as in some cases (like druids with their animals AND summoned animals...) one player...
Slight digression, but one thing I looooove about 4e is no more "hooray, I threaten, oh, wait, no I don't confirm" or even more annoying: "hooray, I crit! Oh, what do you mean I can't crit him? He's undead? Argh!"
This is the best solution, as long as it isn't to the detriment of the other players; either they get rewards for these quests as well, or they should be getting their own private quests too.
Or you could say that they, through experience, research, and market testing, found out the areas of the game that are truly core and supported those to make the game as universal as possible while still staying true to the concept of "Dungeons and Dragons."
Nothing is preventing WotC from...
That's easy to do. When you are allocating treasure to monsters, include their ratty hide armor, battle axes, and Gorbash Brand Tusk Polish as the loot.
There are no rules for professions or crafting.
Personally I'd just treat it as backstory; how does he intend to run a business while adventuring? Take time off while the rest of the party kills things and takes their stuff? Force the rest of the party to sit around idle while he tries to find...
Yeah, I totally house-ruled that you can't power attack objects in 3.5. Of course you are trying to hit the door as hard as possible, that's a given.
A solution, of course, is for the DM to just use common sense, but still be a bit flexible. Sure, I can't bash down a stone wall with a staff...
I feel the same way. I was planning on running a game using the sample adventure in the back of the DMG, but changing a few things (because all my players probably have the DMG). But after changing a couple things, I realized it would be just as easy — and more importantly, more fun — to make it...