Wow. Artifact upgrade odds.
most of the time, RNG is rough... But I just had 1.5 million eaten trying to upgrade a 5 star from 15-16. What is the average amount I should have ready to spare before trying to gain 15-16? Its like the game knew I had a Mission to do and it shouted, GOTCHA. And insult to injury is after I went broke I was offered a million silver for 10 bucks when I backed out to go grind more money. So insulting.
I know I am a little salty, but, what do you guys save up before going from 12-16?