Extremely bad idea, since the str daggers aren't as strong as they should be for the stats wasted, and you can't use Khanjars since you're using a katara.
I am planning to make a dualblade that pump str for str dagger, is it possible?
Extremely bad idea, since the str daggers aren't as strong as they should be for the stats wasted, and you can't use Khanjars since you're using a katara.
The only time you should use a str dagger is if you have enough passive str to wear it, and still stay at 4 base.
So, for 99% of all end-game users, no. It's possible, but a terrible idea. Str daggers only give about 2-3 more attack, so sacrificing more than ~10-15 points isn't worthwhile at all. Str Dits are good because of a combination of Str shields and Str daggers. DBs do not take advantage of the shields.
Spoiler!
Str daggers are certainly nice. As said however unless you can use one from passive increases (such as zak/Czak, HTP/CHTP, rings etc)
If you get these it isn't hard.
-Terra
what is zak, Czak, HTP, CHTP?
zak - Zakum Helmet (15 in all stats)
Czak - Chaos Zakum Helmet (21 in all stats)
HTP - Horntail Pendant (standard is 7 in all stats and after being egged is 22 in all stats)
CHTP - Chaos Horntail Pendant (standard is 10 in all stats and after being egged is 25 in all stats)
They are items that give big stat boosts.