some questions

1)Is it worth to level smoker to level 99 and evolve him, when his new form arrives or will he be outclassed as a dex supporter in future?
2)Should I run ashura zoro or lion song in my slasher crew as a hp boost because of the low recovery ?

1) No real point in upping him to biker besides his bitching character model, he gets like 2 atk a level in biker form. Also whenever perona comes out she is just head and shoulders above smoker (90% defense for 1 turn and removes enemies defense). 

2) Asura Zoro for just about everything is better on a slasher team as you are generally trying to burst people down rather than tanking stuff. 1200 health or 300 atk is the tradeoff between the two and personally i would go with the 300 atk for just about everything. Just keep your lion song for when monster chopper comes out as he is able to take him on with vivi quite easily and you can run a solid team too.

first of all thanks for answering. I almost forgot perona. I wasted time leveling smoker. At least I won't level lion song at all because I got a high level Princess Vivi for monster chopper.
Last question:
Should I level my mr3 or will i use my golden pound more often in future?
(i know very childish questions, but it's hard playing effective without cashing)

It depends, if you are reasonably sure you can clear a boss in two to three turns, use mr. 3 but if not use GP usopp. An example of when to use mr. 3 would be on morgan 30 stam (if you have kuro or tashigi) and you would have to use GP usopp for more difficult opponents like raid bosses chopper and mihawk

No real point in leveling gp usopp (I would get him to at least 500 atk) while mr. 3 is a decent int char/slasher in general. You should use mr. 3 in most story mode things over usopp but usopp will be vital for most raids/fortnights (exception being garp because he ignores turn delays).

Haha I already maxed out golden pound so my only demand was mr3. I will know level him to about 50-60 and wait what will happen in future

Ohhhh, on whether to use mr. 3 or gp usopp. Story missions it is fine to sub out usopp with mr. 3 for slasher teams as the 3 turn delay really isn't needed, same with most fortnights. On raids you will most definitely need gp usopp instead.

Yeah I will play that way know. Mr.3 really got my attention after mihawk.