That's the mana cost it takes in order to activate this ability
See this thread (or the Google sheet referenced in the beginning)
Whether my hands are the right ones isn't the question: Green is the color I'm most comfortable with, the color I feel most capable with, and my answer to the most important question in any game: "What are you happiest playing?" Today, we discuss three most prevalent trends in Green
Generally speaking, Holo cards are rarer , as they usually appear only in the Rare slot of a booster pack
They are Yugioh sized cards, which makes them different from the Amiibo ones that are bigger
Useful for pressing cards, heat pressing cards, and heat pen application medium