Is there any way to make unarmed strikes as ranged attacks? The only thing I've seen was the Blood Crow Strike spell, accessible with a Quiggong Monk instead of Diamond Soul, but...
Is there anything else? Style feats? Magic items? Archetype class features?
An Amulet of Mighty Fists with the sharding property should do what you want.
What he said. There used to be a 3.5 spell for it, but unless your GM allows it, sharding is what you want.
An Amulet of Mighty Fists with the sharding property should do what you want.
I like this. For effect, you could probably convince your GM to make the "sharded" unarmed strike appear as a sort of spectral fist. If they need convincing, see if you can add a limited glamer effect to the item to simulate this. I'd say it shouldn't cost more than an additional 1000 gp (I'd allow for free, but that's me), as the effect would be limited to a single visual effect.
Alternatively, you could do the same thing to get a Dhalsim-like stretchy limbs effect! It's purely visual, so it wouldn't provide reach. Or any other effect you can imagine would work. I would say there would have to be some sort of visual effect, but I think "sharding" your fist or foot by the description of the effect is a bit... weird and creepy.
Player: "I throw my fist at him!"
GM: "What!? Gross!"
If your GM is REALLY nice, you might be able to convince them to allow you to get a permanent Magic Fang, Greater and a magical tattoo with the sharding effect, freeing up your amulet slot.
Just spit-balling here.
If your GM is also feeling nice, I found that spell I was referencing earlier: blood wind, from 3.5's Spell Compendium. Kinda strong even if it it does only last one round, since it lets you keep your melee bonuses to the ranged attack (Something sharding doesn't do.)
An Amulet of Mighty Fists with the sharding property should do what you want.
All I can see from this is that you launch spectral copies of yourself at your opponent. This is some anime level studf right here.