CHESTS WHERE?
Later in the new season, you'll be able to earn Mastery Chests and Keys as you team up and compete with your friends. Upon acquiring (and combining) the two, you'll be able to unlock the chest, earning loot items ranging from 7-day rentals to permanent skins and champions.
You'll have the chance to randomly pick up Keys and Key Fragments after each win. Playing with your friends will result in getting a few more keys than going solo and, if you've got the right kind of friends, wins should be easier to achieve as well! Once you pick up enough Key Fragments, you can convert them into full Keys at the crafting table.
Mastery Chests will be tied to your post-game grades, which have always been a combination of your personal and team performance for that game. We're still settling on the number of chests we'll give out this way over the year (so it's not a grind and we can get a clear view of the ecosystem we're creating), but we'll also be exploring ways to give out chests (and keys) for other modes and events.
For those who just want to pick up loot at a significant discount, we'll also be offering unique types of chests in the store that are guaranteed to be good deals! Finally, if the rewards you earn aren't something you see yourself ever using, you can swap them for other content via the crafting table.