Multiple Natural Attacks, Amulet of Mighty Fists, and the Cruel weapon enhancement.

[Genesist]

If a creature has multiple attacks, let's say 2 claws, and an AOMF with the cruel weapon enhancement, is the temp HP from killing an enemy granted by each natural attack, or capped? In this case, would you gain 5 temp HP per kill, or 10 temp HP?

I know there's the ruling on speed and AOMF, but it seems to be specific to that enchantment.

[Chess Pwn]

you'd gain 5 for killing them with a cruel weapon. Only 1 weapon can deal the lethal blow.