Play games
Choose the game that interests you and play itfor free.
Complete the quests
Every game has some quests for which you will receive Soul Gems.
Receive rewards
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
You need to attack teammates with less than 50% and that makes stacking kinda hard and also you deal like 150 damage or something like that at 15-20 stacks.Really?It feels like it's good only on certainly champs like Karthus but overall I think it's kinda weak.