The first thing you need to do is set up a rewards card
Theres lots of good nonlegendary goblins to copy, and with the choice between removal, a temporary mass haste enabler, or an ability that hopefully adds some goblins to your hand, theres lots of potential combinations
Incapsula incident ID: 351000180099252116-459457476587095186
A series of buyouts in March, culminating on March 31 when one buyer purchased 24 copies, wiped out all the low-cost listings for this card
This is being able to get enough cards on the field to try the Synchro Summoning mechanic
My philosophy with credit card rewards is that you shouldn't be spending money that you would not have been spending otherwise, which is pretty much why I have excluded most of the Amex ecosystem from this post