Here are prodigies I think may be useful, grouped by Stat.
Strength Prodigies
- Flexible Combat: A better than choice that it may first seem, as you can get really decent Str and Dex from Psi Fighting to boost the glove damage.
- Legacy of the Naloren: Telekinetically wield the trident, could it get any better?
- Superpower: More mindpower is always nice, as is 30% more Wil contribution to weapons. Again, you can get Str from Psi Fighting.
- Pain Enhancement: Great if you have high Str and critrate.
Dexterity Prodigies:
- Swift Hands: Seems that this can always be a good utility.
- Windblade: Maybe? Pretty much pure damage.
Constitution Prodigies:
- Spine of the World: No fuss, no muss, no bad physical effects.
- Subcutaneous Metallisation: If you have really high Con I can see this being worth it.
Magic Prodigies
(None, unless you do something really weird.)
Willpower Prodigies:
- Draconic Will: Always useful.
- Hidden Resources: I sometimes find Psi very hard to regenerate mid-fight, so this might be useful?
- Mental Tyranny: Could be okay, mostly for the resistance penetration.
- Range Amplification Device: So many mindslayer talents have range shorter than 5. 60% fatigue is a major, major downside.
I find it interesting that Str has what I see as the most useful prodigies, despite Str not being a core stat for Mindslayers.Cunning Prodigies:
- Eye of the Tiger: If you have good critrate.