This build would be so darn good if the CD would be 15 instead of 34 
Cloaking
Cloaking: Physical Damage
Attack skills following skills [Cloaking] will inflict additional damage of 50% of the physical attack.
Backstab
Make continuous attack using sword. Double attack with high rate of critical and has chance of fainting enemy.
Sneak Hit
Temporarily increase chance of critical when attacking from behind enemy.
This build would be so darn good if the CD would be 15 instead of 34
/ftfy
This build would be so OP if the CD would be 15 instead of 34
Sp is 97 at level 10 backstab
And Steparu is pawning people, boss, and mobs with 120 SP Energy blast and still has more than enough SP for Divrbys constructs.
34 seconds is generous for something that deals huge burst damage.
Does cleric have naturally more Sp than archer class? Square buffed his Sp 28% + Sp Regen for 5%
Cloth attribute for Cleric is more max SP + Magic Def (kinda useless for grinding since it’s more about sustaining so SP regen is better)