DO I NEED SP ATK ???

OK so i really want to know what u guys think about special ATK, im lv 170 and i have lots of special ATK(178) so i was thinking "do i really need this?" cuz i really want to reset my skills to have more stamina... so my damage is 2.2 M/HIT  so when i hit, lets say a boss, it goes from 1.8 to 2.4 even 2.5 in a perfect hit...  so here are my questions:
 
1.IS IT NECESSARY?
2.DOES IT REALLY HELP?
3. WOULD YOU USE THOSE SKILL POINTS FOR STAMINA?

thanks for your help :3

1. no
2. hell no!
3. definitely

These 178 points you put in attack are helping you less than 1 Succubus does. Your damage is 2.2 millions, so these 178 points dont make any difference (same for defense points you may have)

After you reset the skills, that'll give you 29 extra stamina. You should definitely do that if you have the 200 jewels saved up.

edit: by the way, in case you dont know, the damage range you deal on bosses is just random, it has no connection with these attack points you got with skill points.

Reset skills asap

The damage you deal with a 1x hit is equal to your total attack multiplied by a random value between 0.8 and 1.2.

Id save up for a skills reset, that's quite a bit of points you could be using towards stam and energy