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The permanence of perpetual effects has one exception as a player's commander moves to the command zone, they may choose to remove all perpetual effects on their commander. This is most critical for when cards enter hidden zones such as the hand or library - only one player can verify which is the affected card if it returns to hand, and neither can confirm whether the card drawn is the same copy if it is shuffled into the library, but the computer can. While this is an effect that can partially be tracked with paper cards, it becomes substantially simpler in a digital space. Alternatively, Lumbering Lightshield can perpetually increase the cost of casting a card in your opponent’s hand by one colorless mana – the affected card then maintains that increase, whether it’s cast from hand or somewhere else, like from the graveyard, with Flashback, or from exile with Foretell. Perpetual counters work similarly, "following" that card and applying their effects to it even if the card is shuffled back into the library and redrawn, only disappearing at the game's end.įor example, Davriel’s Withering perpetually gives a creature -1/-2 – if that card reduces a creature to 0 toughness or less and sends it to the graveyard, for example, the debuff will remain in effect even if a player is able to bring it back to battlefield (causing it to immediately die again). The card only resets back to the original printed attributes after the game is over. It's as if a paper card had its old attributes physically erased and rewritten so that even if it left the visible zones of play and re-entered it later, it would still have the modifications written on the card. Perpetual effects modify a specific card permanently, even as it enters other zones of play.
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