If you had to build a system, what stats would you put inside ?

[Hand of Evil]

So, perhaps Str should be a skill, like in exerting Str with the help of voice ...
Does this means something to you pals ?
( lol )

As Str can be improved on, I can see it as a skill. If you look at people, you will find most are within the same range of STR unless they train or are in a profession that adds to it.

The thing to look for is "common" attributes across biology. Man vs Ant vs Cat vs Dog vs Man vs Elf vs Giant vs Demon, and so on. You want something that works as a framework.

 

[Committed Hero]

Ok for just skills, but how many ?
Around 13-17 as in recent dnd, or 100+ like in Warhammer?

No more than 30. It depends on the core activity of the game.

 

[Hand of Evil]

Oh, Durability would be a stat too

 

[Cadence]

One I'm currently musing over is leaning towards something like the following, where I don't have the first three locked in at all yet.

Strength/Fitness/Endurance
Agility/Mobility/Balance/Speed
Dexterity/Aim/Hand-Eye Coordination
Awareness
Willpower
Charisma

with size/build modify or play into the first two and point pools are around for various magic/spiritual related things. The various mental skills probably wouldn't have a stat, but awareness and willpower might help one get more skills of all types.