thanks for your answer , 3 things:
1) About andrenaline , since rate is hard (especially with normal scrolls , think that propably one scroll would need 10-15 minutes of farming or maybe more) isn't non-sense? Also farming zones would propably be PVP-PK (for blessed scrolls mainly this)
2) IF augment skills would be added in donate shop , their prize wouldn't be more than 5 euros (but remember their low stats ). Also TOP rate 5-7%? It would be sure more than 10. The only donation actually would be propably this with the augments and premium status ( +% drop , access to some premium buffs that save time like hot spring or seraphims,etc). No max enchanted equipments ( maybe +6 for example , but better not equipment donations at all , I find it stupid)
3)What's your suggestion about boss jewels?