The question isn't "can you take an action in the middle of someone else's action?" its "can I take an action in the middle of my own action?" For example, a ranger cannot, after his first attack with twin strike drops an enemy, mark a new target before making the second attack.
edit: oh and 26(lurkers and artillery) is the low end of AC for 14th level monsters, with 30 (soilders) being the high end. All non-elites of course.
Well, yeah. Quarry is a minor action. Activating bloodclaw is a free action. Since you can use free actions even when it's not your turn (such as right before you take an opportunity attack), there's absolutely no reason you can't do it multiple times per round unless your DM says no.
So what you're saying is that when I jump over the enemy tanks or move around them, the high priority artillery targets that deal tons of damage to my team are still going down hard? Works for me.
What I have an issue with is when people shift the goalposts. Your level 13 barbarian can't have +6 strength and +5 con, and he doesn't receive a +7 bonus for level...oh and we're assuming he's flanking too. Got it. You're also still not hitting AC29 on a one.
Even with that, I'll tell you that this character is pretty powerful, but he's also living on borrowed time. With 11s or 9s in all of his other stats, his AC, REF and Will are going to be terrible. He's also going to contribute nothing to the group in a skill challenge that doesn't involve athletics.
Beyond that, unless you're creating this character at level _14_ which is what I think you meant, you've had to play them to the point where they got this uber ability, with all of the weaknesses that low AC and defenses give.
So you've got a good character, but I'm far from thinking you've proven bloodclaw to be broken.
Meh, I'm not "shifting goalposts", I made a mistake, and further amended that 1 or 2 (or even 4) points of AC isn't going to change much, aside from the fact that I have only an 80% chance to do something really good instead of 95%. Also I've been assuming flanking from the beginning. It's *really* easy to get into a flank in 4e, especially when my flank partner is a halfling artful dodger rogue.
And no, I've played this character from level 11. Hopefully that's enough "cred" for you.
Also I've got 14 dex and 12 wis, not sure why you think a character with 16/16/13 is like some horribly crazy lopsided risk build, with no defenses. Did you forget that rageblood barbarians have access to HEAPING STACKS of temporary HP? The only time I dropped below 0 in three and a half levels, I used an immediate interrupt to spend a surge and laugh.
I play multiclass ranger, and have training in Stealth. I often pull weight in skill challenges with not only Athletics, but Endurance, Stealth, and Perception. So, in short, your assessment of that aspect of the character is woefully inaccurate.
I agree that it's a very strong combo, but I wouldn't push it to broken yet.
The way I see it, 4e isn't balanced around individual one-on-one fights, it's balanced around the encounter. That combination requires you to spend an action point and an encounter ability. After you've done that, you might have taken out one or two opponents, but three or four will still be left and your best combo is no longer available to you. No doubt, you've made the encounter significantly easier for you and the rest of your party, but it still isn't a guaranteed victory.
That said, the linchpin in that combo appears to be storm of blades, and I expect that it will eventually go the way of the ranger's blade cascade and the fighter's rain of blows. If it does get errataed, the number of attacks may cap out at four or even three.
So you really think trading an action point and a daily rage to immediately take out between 1 and 2 same-level monsters is fair? Your call, I guess. =) Yeah there's four monsters left (maybe), but there's also 4 more paragon tier characters up before I get to smash something up again. There are never any guarantees, but I think the fact that no other character in my party can come even remotely close to my damage output says a lot.
Also, you're basically right about SoB. It is the linchpin; but without bloodclaw, it wouldn't be nearly as bad.
*Broken-ness Update*
We played last night. I pulled out "the combo" (as we have all started calling it) on a Grave Dirt Golem (15 elite brute) and took it out in the first round. No misses--I actually hit it on a nat 5.
I did have one at-will buff (lance of faith) and I had to "waste" a level 9 daily plus an action point. I used Oak Hammer, knocked it prone, and proceeded to wail on it like a stepchild with sweet, sweet Action Surge. One of the 6 attacks was a crit (3/10 chance, not really that unlikely). Every attack hit for 5 extra damage after I knocked it down. It had 19 damage on it when I started, and I inflicted, I believe, 353 damage.
When I finished, I regained 15 temp HP (I lost 21), free action charged to the back line, and slapped another 30-something damage on the NPC necromancer reskin, which I believe was somewhere around level 18 at the time of his death.
Did I roll well? Yes. Did I get a crit when I needed one? Yes. Can any other combo drop a higher leveled elite brute almost single handedly? Not bloody likely.
Total Cost: 9 daily, 1 action point, 13 encounter, and 21 HP
Total Gain: dead elite brute, 15 temp HP, and a raging barbarian smashing up a clothie in the back row on the 3rd initiative tick.