Tilting the card at different angles in bright lights will allow you to catch micro scratches
For even more in-depth information on the breeding method, take a look at this Nose Club guide
It also serves as tribute fodder for your Senior Silver Ninja as well as any other 1-tribute Ninjas that you choose to run, such as Red Dragon Ninja, Twilight Ninja Nichirin, the Chunin, or Blue Dragon Ninja
The theories online are rampant, with the biggest theory being that you should check each Booster Pack for a curled foil section on the top of the pack that is noticeable from the side
It's relatively straightforward as a strategy too: start with Hitmontop and use the cheap energy costs to start an immediately aggressive play, using the Rocky Helmets to dissuade opponents from attacking you back
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