To be removed from play (also called RFG or removed from game) is a term used to describe when a card is removed from the Duel by another card's effect. Once a card is removed this way, it cannot re-enter the current duel, except by a card that specifically allows it, like "".
Originally, there were not many cards which could remove other cards from play. (e.g. "".) However, over time, removal has become a popular theme, with several cards to go with it ( and cards, for example.) And, in turn, more cards were created to bring them back (such as , and , for example.)
Removal is good for breaking strategies, especially when combined with a card like Hand, Deck, Field Contents, and Graveyard, into a new Deck, but doesn't combine cards removed from play. Combined with monsters like , or any in the series can give a player some of the highest attack powers in the game., which reunites every player's
Since currently, many decks rely on the graveyard, decks that rely on the effects of ATK monster in Survivor that keeps returning itself every time it's removed from play while face-up for as long as the removal card is active, have shown themselves to be powerful decks., and , along with have grown in power. Being able to shut down an opponents Graveyard, plus having an 1800
Thecan be placed anywhere on the table, as it has no actual place in the game. However, most typically it is placed above or to the right of the or placed face down beneath the graveyard.