Gods unchained a similar card game to Hearthstone recently brought back the refer and earn program where you can earn 10 free gods tokens by signging up connecting your wallet and reaching rank 3 but all of this should be pretty easy to do. To get the 10 gods tokens use the referral code wUubTyNxlJ or referral link https://godsunchained.com/account/register?referral=wUubTyNxlJ

After getting your free gods tokens you could withdraw it or spend it on some card packs/cards to earn even more from the weekend ranked! You could also refer your friends to earn aditionnal gods tokens!