couple of things i'd like to ask about the boxes:
1. are the items you get always 100% by luck & coincidence or is there some system that makes sure you get for example a legendary item every once in a while/ makes sure you wont get too many of them ?
2. Is there some way to increase/optimize your chances, i have heard it's better to save up & buy many at once rather than buy one every time you can, but i cant tell the difference about it.
3. Does it affect your chances if you buy them all in a row, or should i wait some time between buying them ?
4. the items you get are within -2 - +2 of your current level, so if i wanted a legendary item at level 15 for example, is there a 'best level' to get that item at ?
A lot of questions to ask in one post, sorry about that. I hope someone has the answers, been wondering for some time

Many people say to buy many at the same time but this happens to them by coincidence its the same saving up or just buying one at a time once you`re level 30