You can upgrade it one more time, turning it into a 5/5 legendary creature that gives all your other creatures indestructible, which is pretty darn good
However, it maintains a similar price difference between its top and bottom halves, like the Darkrai & Cresselia Legend card
This card searches for it or any other card related to it upon activation, plus it prevents other Special Summoned monsters from attacking right away
The second way to get wildcards, and by far the most common, is by opening Arena booster packs
With a little strategy, a little luck, and the contents of this incredible box, you can battle with the best and have a blast while doing it