Ok, explain the human feat that adds +2 damage to a sneak attack in exchange for granting CA against you then?
I see (and have seen) the power as primarily being used by people who simply don't care that they're granting CA, and want to cause more damage. ie - the completely broken battle rager.
Well, yes it does do more damage, and is more accurate. However, I would like to point out, that taking -2 to your defenses for a turn at the same time as you grant the entire party a +2 to -their- defenses is an incentive to attack you. It's like doubling the effectiveness of marking in terms of pulling attention on to you.
-That- is how it makes them more likely to attack you.
I don't see any fighter actually using it to encourage foes to come after him, and it's hardly something that needs a new power: I doubt that any DM would actually deny the request of a player who wished to voluntarily grant his foes combat advantage.
Well that's easily done, just drop prone. But giving someone an at-will that does decent damage, is accurate, AND encourages attacks against you, at the risk of CA-triggered monster powers hurting you hard? That's a fighter power, through and through.
The power is a striker power through and through.
Strikers want to -avoid- being hit.
Here's the party dynamic:
Defenders take more hits.
Strikers avoid more hits.
That's how the roles are designed. Striker is not just 'deal damage.' It's 'deal damage where the enemy does not want it dealt, while avoiding the brunt of their assault.'
Defenders on the other hand aren't just 'mark enemies.' It's 'Deal with hard targets so that the other characters can do their jobs with less harassment.' Fighters do this through damage dealing, damage mitigation, and risk mitigation for the rest of the party. Brash qualifies as damage dealing + risk mitigation for the rest of the party. It's the fighter analogue to enfeebling strike.
Funny. That's exactly what the fighter powers are doing.
No fighter power makes the fighter more likely to be targetted than other party members. If you see one that either increases the party member's AC beyond marking, or decreases the fighter's AC, then I'll recognize it.