I want to revive this for just a bit. Most the discussion above is about how it works when the PC has the reach disadvantage. I'm playing a fighter with a spear, and I'm having trouble figuring out how it looks, mechanically, when I use my reach to advantage.
So, a few cases are pretty clear. To recap:
• I have reach and I'm fighting a guard with a polearm, or an ogre with long, ropey arms. If I were running around with a sword, I'd probably have to look hard at how I'm getting in there to attack, but I've got a spear! We're fairly matched in reach and it's fine.
• I have reach and I'm fighting a thief with a dagger, or an irate dire badger, and he's inside my reach. Well, crap. But this is addressed above.
• I have reach, fighting the thief or badger, and he's coming at me while we're at my optimum range. Here, I guess, is where "If the player says they do it like it's nothing, get more information" cuts both ways. I can ask how he's coming, and act to ward him off, keeping him from slipping inside my reach. And maybe that's defying danger, just like it'd be defying danger to dodge a direct attack, right?
But this case, I'm having trouble working out in my head:
• I have reach, fighting the thief/badger, I'm at my optimum range, and I'm attacking. The other guy is ready for me, so I don't get free damage, but he's not very well placed to retaliate. How might this shake out?
If I hack and slash, barring a 10+, I'm opening myself to immediate attack, right? Even if he's way over there with a dagger, or his stubby clawed limbs. It seems odd that succeeding at my roll would give him free license to close within my reach and attack. Of course, the thief might step back and throw something at me, say, but the badger probably won't.
But I'm also seeing this line in the detailed Hack and Slash rules: "The enemy’s counter-attack can be any GM move made directly with that creature." That might suggest that I hack and slash, and the other guy's "attack" could actually be something that's not an attack at all, like closing up distance.
Or am I defying danger, or even volleying or something? What's the intent?
A concrete example: I'm moving along a narrow trench with my party when the bones scattered about begin to rise as skeletons! I destroy the nearest, pinning it down with my spear before it can get up, then stomping the crap out of it (hack and slash, I took a little dab of damage). Then I decide to head for higher ground, where I can take advantage of my reach. I defy danger to scale up the walls to the top of the trench, then I turn and thrust downward, trying to spear one of the skeletons below.
At that point, I rolled hack and slash, hit a 10+, and chose not to give the skeleton an attack, so no problem. But it set me to thinking if hack and slash was the right move for that kind of situation.