Why did I spend this much time arguing this point?
I personally feel that these are bad arguments. Why?
A dragonborn’s breath weapon is a special ability, a breath weapon, not a part of their body like a claw or a bite. Looking at the dragonborn in the MM, none of them get any form of natural weapon attack. They don’t bite, they don’t claw. From the level 5 to level 23 they all use weapons; period. Minotaurs on the other hand use their horns/gore as an At-Will attack.
To my view, any way you want to look at – the minotaur DOES use its gore/horns as a weapon. I already decided to give the option as feats though, but it does follow the pattern that minotaurs have a “natural weapon” even if it isn’t Mechanically coined with that term.
The same argument could go for other creatures.
As you pointed out I agree that Lizardoflk should NOT have a claw or bite attack since NONE of the MM entries have any such attack. They all attack with weapons (spears, clubs, blowgun). However, there ARE lizardfolk in the MM that use a Tail Slap as an At-Will attack. This IS a “natural weapon” (again even if it isn’t coined with that term), so an argument could be made to give such an attack to a Lizardfolk PC as an Encounter power in the same way Minotaur gets Goring Charge as an Encounter Power from its parent MM entry’s At-Will power. I would go so far as to say that Lizardfolk could also gain the appropriate bonuses to unarmed attacks based on the use of their tail as a weapon (it does more damage than a minotaur’s horns after all).
Another example is the Lycanthrope. They DO have natural attacks. They specifically get a “Bite” attack as an At-Will. This all follows the same arguments as above. Any way you want to look at it, “natural weapons” do exist in 4E, they are just polished up and tucked neatly into the power system that all creatures use. There is really no reason a creature like a Lycanthrope couldn’t get a racial ability along the lines of this.
Bite Attack – Lycnathrope Racial Power
You use your naturally strong jaws and sharp teeth to tear into your foe.
At-Will
Standard Action -- Melee 1
Target: One creature
Attack: Strength +2 vs. AC
Hit: 1d6 (or 1d4)+ Strength modifier damage.
As for dragonborn getting wings in the MM and not the PHB. That’s a real stretch. “Technically” it’s true yes. However, the only MM dragonborn that gets wings are the Dragonborn Champions, which are level 26. For a PC that would be part of an Epic Destiny or an Epic Feat. Since there are no Epic Racial feats yet, or Racial Epic Destinies yet – we can’t really say if a dragonborn PC will be able to get them or not. I am willing to bet they will. It will come in a following book like the Draconomicon or an Advanced Races splatbook like the “Races of” series of 3X where they do more to deepen and expand on the races. I am certain we will see splatbook expansions with Racial Feats, Racial Paragon Paths and Racial Epic Destinies.
I'm sorry Khaalis, but all your arguements seem to be "The MM says that they get it, so I'm giving it to them". But you're forgetting that Monster Races =/= PC races. Not in 4e, anyway.
That was one of the major problems with monstrous PC races in 4e. To adequately balance the use of the montrous race as a PC race you needed level adjustments. I hope you can agree that level adjustments have been removed from 4e.
The lowest level Minotaur in the MM is a level 10 Soldier. You are trying to make a PC race that reflects the MM entry, but you seem to be more interested in making the race an accurate reflection of the MM entry and you don't seem to be as interested in making a balanced PC race. That is a mistake. It's a mistake because that is a 3.x mindset.
Aside: Many people who don't like 4e point to the fact that you can't make two monsters fight in 4e. They point to rediculous battles, like a Wolf against the Terrasque and say "If the wolf rolls a 20, and has another wolf flanking for combat advantage, then the wolf knocks the Terrasque prone. That's INSANE. 4e is completely stupid!!!"
The problem is that they are looking at the MM in a 3.x mindset. In 4e, monsters aren't designed to fight monsters. The reason behind that is the designers said "Monsters are there to fight PCs, not to fight each other, so we aren't going to design them to fight each other". If they had designed them to fight each other, they simply would have added "...knocked prone, if the target is large or smaller" to the wolf entry.
In the same way, monsters were not designed to be PC races in 4e. PC races were not designed to be monsters, either. The MM entries for the Player's Handbook races have different designs. The Human Berserker has a "Battle Fury" attack, but that doesn't mean you should give all PC humans a "Battle Fury" attack. (Yes, I know that's a bit of a stretch, but I hope you get my meaning).
I believe the design philosophy behind the "Racial Traits" (pg 276) in the MM is to give a plausible PC race of the same FLAVOR as the MM entry. Again, Monsters are designed TO BE MONSTERS ONLY. You can't just say, "I would go so far as to say that Lizardfolk could also gain the appropriate bonuses to unarmed attacks based on the use of their tail as a weapon (it does more damage than a minotaur’s horns after all)." because what you are really saying is "The MM entry IS the PC race". That is wrong.
(Note also that only ONE of the Lizardfolk MM entries can use it's tail as a weapon. You are suggesting that ALL Lizardfolk PCs should get a "Natural Weapon" based off of that.)
/Aside
Now, I like the feats you wrote up for the "natural attack". I definitely think that racial feats are more appropriate for this sort of ability than just making the ability part of the base racial abilities. I would suggest the same thing for any other homebrew PC race of a MM entry.
....I just finished writing all this and I said to myself:
"Verision, have you even LOOKED at the MM entry for the Minotaur?" and I answered myself "Well, I looked at the Minotaur in the Racial Traits section (pg 276), and I've glanced at the MM entry on pages 190-191, but have I really gone over it with a fine tooth comb?".
"No", I answered.
So, I says to myself, I says "You'd better take a good long look at that"
So I do and, low and behold, THE FRIGING MINOTAUR IN THE MM DOESN'T EVEN HAVE A FREAKING GORE ATTACK (aside from the goring charge which is what the PC minotaur gets anyways). You're trying to give the monster a Natual Weapon and it doesn't even have one in the MM. Heck, your "Lizardfolk get a tail slap at-will" makes more sense than this arguement we've been having. I give up. I'm going to subway.
Gore" attack. So I see the argument you make that the "minotaur doesn't have a gore attack."
Goring Charge 
