@cornavirus beat me to it, but i wasted a lot of money early on with packs and got very little that was useful. i know they're super fun to open, but it's way more cost effective to just rent cards or buy them on the market. fun fact, i have NEVER pulled a legendary card from a pack. over 200 total packs (beta and untamed - purchased and won) and ZERO legendary cards. hit the market. that's the advice i wish i had early on