Spot it! The Lord of the Rings

Spot it! The Lord of the Rings features gameplay nearly identical to that of Spot it! Nearly every card features eight different symbols, with the symbols varying in size from one card to the next. Any two cards have exactly one symbol in common. For the basic Spot it! game, reveal one card, then another. Whoever spots the symbol in common on both cards claims the first card, then another card is revealed for players to search, and so on. Whoever has collected the most cards when the 55-card deck runs out wins! How Spot it! The Lord of the Rings differs from Spot it! is that includes a 56th card: the One Ring. What are the rules for this card? No clue as for now the rules are (appropriately enough) invisible.