A quick question, on the anniversary are the chances of finding a mythical increased? Or does it just change the hurt counter to 400 gems? In a normal banner the % of finding a mythical is 1%, is this % different in the anniversary banners? Or is it the same and the only thing that changes is that the hurt counter changes from 1200 gems to 400?
By the way, if the possibility of a mythical coming out is 1%, every how many gems by probability should a mythical come out?
That percentage you mention is increased every festival. Anniversary banners are always festivals, so I guess this answers your question.
You should always keep 500 gems in the sack in order to use the x1-2 multiplier when it comes out. If you’re going after a mythic you’ll do well on gathering at least 1200 gems. 1500 gems if you want to still save 500. It doesn’t mean that you’ll spend them all, but it’ll help you to prevent heart attacks if you find yourself spending many gems on epics.
By the way, being new and speaking Spanish (I guess?) you’ll do well on joining a guild/clan. This way you’ll find better answers and improve faster.
In the anniversary there’s a guaranteed mythic every 10th pack, which basically automatically converts the 100th egg into a mythic. We’ve never seen the actual drop rate of mythics change, but the anniversary eggs are almost the same as doubling the rate.