Best Dagger for Halberd and crt calc for strike stab

Yo minna,
my doubt is:
What better dagger for halberds?
With crt, with str, with stability?

And how calc for crt chance of strike stab, and crt calc for stats base of my character?

Atually I my gear is:
Second Anniversary V 233+b
777% slot without bkd
Anniversary dress 78+c
7% str 131313 slot Roga
Gothic hat
14crt +1%short dng and warmonger
Muscle talisman III slot MS

My stats is
Full str + agi
Maybe better if I'll reset stats and remove agi and put critical?

 

Power knife