The play-calling system is very easy

In each purple box, there is at least one little Z, all the way up to three little Zs per box. Stay with me here: The number of little Zs in the box is the number that must be rolled (or less) and has to be equal to, or less than, for the blitz to be called. For example, in our earlier defensive example a 24 was rolled. ................
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