[RPG] How tontimidate (demoralize foe) as a Move or Swift action

I’m going to answer “how do I combine Dervish with Lightning Maces,” rather than specifically how to get a slashing mace.

Aptitude Special Ability

The aptitude special ability from Tome of Battle can be applied to a weapon to cause feats that are specifically for another weapon to apply to the weapon with aptitude. It is likely that the designers meant just to let you switch Weapon Focus (dagger) to your aptitude longsword and similar, but the wording of the feat allows even feats where you never had a choice about the weapon type to apply to the aptitude weapon. This is frequently quite powerful, and occasionally completely nonsensical.

If you really want to use maces specifically, you could have an aptitude light mace, and then apply the Versatile Unarmed Strike feat to it. This is probably going to fall into the latter category for most groups, but it’s RAW-legal.

Alternatively, you could use an aptitude slashing weapon, ideally one with a large threat range (the kukri is almost certainly your best bet here: light slashing weapon with a large threat range), and then let Lightning Maces apply to it.

In either case, the Roundabout Kick feat works similarly to Lightning Maces, but for unarmed strikes: once again, aptitude can allow you to take the extra attack with your mace or kukri.

Combined with Disciple of Dispater, the kukris are looking at enormous threat ranges, which means you’ll score a critical on very-nearly every single attack that successfully hits. The maces are only somewhat smaller. Combined with Lightning Maces and Roundabout Kick, every critical triggers two attacks. Your number of attacks is thus more likely to increase rather than decrease; if you hit on the first two or three, you are statistically unlikely to stop attacking until the target is dead.

This is, of course, broken.

Were I your DM, I would allow you to have your slashing mace or allow Dervish to use non-slashing weapons without a second thought. On the other hand, Lightning Maces already is on my banlist. I also consider any combination of aptitude with a feat that couldn’t normally select the weapon in question to be something to be adjudicated by me, on a case-by-case basis.

I would say Y has to do it since Y does not see or know the danger involved in doing what you are suggesting. The only thing that I can see wrong here is that if Y somehow knows that what you are suggesting is 'eventually' dangerous to him.

I base this on the description of charm/dominate where it clearly states that the effected will perform any action that does not pose a threat to his own health. Literal copy of the RAW (I used the 3.5e rules here since they offer a nice example which the Pathfinder version does not) for charm person:

An affected creature never obeys suicidal or obviously harmful orders, but a charmed fighter, for example, might believe you if you assured him that the only chance to save your life is for him to hold back an onrushing red dragon for “just a few seconds.”

The suggestion that you made to have Y move to a certain square sure seems to be a lot less dangerous than what is described above, so if it works with charm it should work with dominate/diplomacy in my opinion.