List ability activation cost on leveling screen agility descriptions and character info. I find is help full to know how much will power I need to consider for class abilities when deciding to purchase abilities and/or by stat increases.

I didn't know the cost of Onslaught until after I'd spent the SP to buy it because no where does it tell me it costs 2AP and 4WP. I figured it would only cost WP and might be useful to me at the time, but after finding that it cost 2AP it revealed itself to be more of wasted SP that would've been better spent on stats at the time. Since I couldn't figure out an applicable use, I was instead forced to reload an old save and redo the mission that gained me that level.

I was annoyed and strongly think that more information in the Training screen would go a long way to making this a far better experience.

On the training screen the 'purchase' cost in SP is shown, but not the use cost.

It would save me having to remember them...

There is no information about WP/AP usage when selecting class abilities.