Buy credits ---> buy packs ---> sell cards ---> $clintz$
It's the fastest way
This is same as with cars... the faster you try to do it the more likely you are to end up in flaming wreck.
From the less risky but slow to more risky but (potentially) fast:
- Just play the game and keep the match pays and wins. Slow but steady, 100% secure.
- Play the market slowly - Pretty secure and OK income for your investment over the time.
- Make risky investments in hope of fast money. (Very risky. You probably lose your money and/or effort unless youre highly skilled and have long market experience to tell good trade.)
- Play lottery with all your money. (If you score multiple three oscars this is the fastest.) (Extreme risk, your chance to succeed is less than 0,001%)