Remove from Game (also known as RFG or Exile) is the act of putting cards from anywhere into Removed Area,
- "To remove a card from the game, move the card to the Removed Area."
Remove from Game is arguably the strongest removal in the game, since it involves the Removed Area, which is a Zone with the least interact-ability in Force of Will. Some cards or abilities can retrieve cards from Removed Area, but it's very restricted and very dedicated to a specific deck.
However, recently it's also found in Fire attribute, although it served as a form of Self-Milling drawback.