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Klaw, and since Klaw is always trying to steal Vibranium, it ties the card into the overall theme
Outside of his Voltron-style deck capacities, "Cloud, Ex-Soldier" is a really neat tribute to FF7 in a few ways
With Dragoons Lance (another Choose A Job equipment) we see that they are reasonably being typed as Knights, as that equipment gives +1/+0, and makes them a Knight
This means that, while your opponents will struggle to keep up with your tempo, you can build up your resources and control the state of the board more efficiently than ever