Yup, I have a few Centurion decks but, the one I have opened so far has that.
You can use it as a "key card" in an effect. That's how I utilize it. If you don't know what a key card is, there's a section in Royal Road to Card Magic (pages 75-86). I'm also going there's a vast amount of other resources but, that is the most simple use of the concept I have readily available

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-RA69