What does everyone think of...

[Aulirophile]

There is actually a way of making Dragon Breath At-Will. At level 30 with a Ring of Free time you get 4 blast 5 minor action attacks that have all sorts of bonuses and it does a pretty absurd AE DPR.

I'm gonna go with this is a bad idea.

 

[Mengu]

Maybe I'm misunderstanding something but turning racial encounter powers into at-will powers sounds absurdly powerful. But the idea of racial at-will powers has a lot of merit and can be quite reasonably balanced.

A racial at-will power would be a power you can replace one of your class at-will powers with (maybe through a racial power swap feat).

For instance Elves may have something like this:

Aimed Shot - Elf Attack 1
At-Will * Weapon
Standard action - Ranged Weapon
Target: One creature
Attack: Dexterity + 1 vs. AC.
Hit: 1[W] + 1 + Dexterity modifier damage.
Increase damage to 1[W] + 2 + Dexterity modifier damage at 11th level, and 2[W] + 3 + Dexterity modifier damage at 21st level.

Or an Eladrin may have:

Fey Blast - Eladrin Attack 1
At-Will * Implement
Standard action - Ranged 10
Target: One creature
Attack: Intelligence vs. Reflex.
Hit: 1d10 + Intelligence modifier damage and you may teleport 1 square.
Increase damage to 2d10 + Intelligence modifier damage at 21st level.
Special: You may use any implement granted to you by one of your classes for this attack.

Or a Dragonborn may have:

Dragonborn's Roar - Dragonborn Attack 1
At-Will * Weapon
Standard action - Melee Weapon
Target: One creature
Attack: Strength or Charisma vs. AC.
Hit: 1[W] + Strength modifier or Charisma modifier damage and you may mark 1 enemy in close burst 3.
Increase damage to 2[W] + Strength modifier or Charisma modifier damage at 21st level.
Special: When charging, you can use this power in place of a melee basic attack.

I certainly think powers like these would make great options to bring additional racial flavor into race/class combinations.

 

[CovertOps]

There are a lot of feats and a few paragon paths that enhance what a Dragonborn can do with its breath weapon. Promoting that breath weapon to At-Will would automatically make all of those features much more powerful.

This is very true. A change like this to an existing game element can suddenly break a lot of things. I was more trying to focus on the concept and picked something that seemed like it fit well for an example.

 

[CovertOps]

Another option might be:
Eladrin Fey Step (at-will)
Teleport 3 squares.

It doesn't have to be an attack type power, but just something to give races just a little more difference and flavor. If you are sacrificing a class at-will to get it, then it should be an attack of some kind.