Yes. And all Warlocks have Eldritch Blast. And that's okay.
Apples and Oranges. Eldritch Blast is a class feature.
No, there doesn't. Twin Strike (which I assume you meant) is one of the top at-will powers. It is one of the powers that defines the Ranger -- a class feature disguised as a power.
Except that Twin Strike is not a class feature.
Some players do not want two weapon for their melee Rangers. They do not want a Drizzt.
They might want a Ranger that does not double weapon or bow. How about a Ranger with a Shield?
To get that character concept, they need a Ranger damaging power that is not two weapon or two missile attacks per round, but on par with Twin Strike.
This is not just about powers. It's also about character concept.
We don't need more powers designed to be balanced against the top of the tier -- that's power creep, plain & simple, and these new powers won't compete against Twin Strike, they'll just make the Ranger who takes both even stronger. Bad answer.
Incorrect. If Twin Strike and Careful Attack are BOTH damage only powers and reasonably balanced, then they directly compete. Nobody will take both of them because everyone will want a secondary At Will that does something more than just damage.
Ranger with Careful Strike melee that does +mod damage plus Shield is equal to Ranger with Twin Strike melee. One has a better AC and Reflex, the other averages more damage.
It's only Ranger with Careful Strike Bow that does +mod damage is slightly less able than a Ranger with Twin Strike Bow.
But, that's ok. The Careful Strike melee Ranger who can also use his Careful Strike with a Bow is a reasonable concept. He focuses on melee and shield and occassionally does bow.
You miss the deeper point: if Twin Strike were the only thing standing in the way of poor li'l Careful Attack, why doesn't its twin brother Sure Strike get any love? Fighters can't have Twin Strike, and they still spurn the equivalent power.
Deeper point? Ha. Sure Strike should also be improved. It should be + mod damage. That balances it.
Cleave = Basic Attack + damage others
Reaping Strike = Basic Attack + always damages a little (except minions)
Sure Strike = Basic Attack at +2 to hit
Tide of Iron = Basic Attack plus push/shift
Sure Strike should be put on par with the other Fighter powers. No doubt about it.
It's not Twin Strike keeping Sure Strike down. It's the fact that Sure Strike sucks, and the same is true of Careful Attack.
And both should be put on par with other At Will powers.
My proposed fix for Sure Strike is to add this line:
Effect: You gain a +2 power bonus on attack rolls until the end of your next turn.
This is terrible. Sure Strike is still weaker than the other three since OAs rarely happen in a game. zzzzzzz
So after considering the Melee Ranger with Shield, I've come to the conclusion that my original assessment of making both Sure Strike and Careful Attack basic attacks at +2 to hit is totally balanced AND it's simple. There is a definitive reason to take them as a Fighter or Ranger respectively. There is no need for a bunch of other special rules.