This weekend, get on PTS and receive 250 gems for winning five games! By doing this, more of you will get on PTS and hopefully give feedback and help improve the patch before it goes live. Reporting bugs and giving feedback is very important.

1.) Download PTS here.

2.) Check out the rules/instructions here.

3.) Queue up for matches.

4.) Win five of those matches.

5.) You will receive 250 gems on your LIVE account when the Alien Attacks patch goes live on September 22nd.

6.) Most importantly, submit bugs here.
 
 
Source: Forums