The only cost is tapping itself, making it that much easier to do so
Considering the popularity of this card and the absolutely incredible artwork of Mega Lucario fighting Mega Venusaur in a head-to-head battle, any collector would be lucky to have this in their collection
Willbreaker Willbreaker usually dies right away, but actively dominates the game if left unchecked
For example, say you control Gandalf the Grey and have chosen the first two modes
After all, a lot goes into it - Such as picking a theme, choosing a couple of hundred cards (at minimum), and keeping everything balanced
For example, if the acrylic cases contain bisphenol A (BPA), there may be restrictions on their import