Assertion: card's use | /r/HasProperty | the eternal struggle
Facets:
Source sentences:
text: A patent was granted to Wizards of the Coast in 1997 for "a novel method of game play and game components that in one embodiment are in the form of trading cards" that includes claims covering games whose rules include many of Magic's elements in combination, including concepts such as changing orientation of a game component to indicate use (referred to in the rules of Magic and later of Garfield's games such as Vampire: The Eternal Struggle as "tapping") and constructing a deck by selecting cards from a larger pool.