It just sits there and you keep getting an advantage
Its a set thats so old its got our writers split between those who remember its release and those who dont by virtue of not being born (guilty)
Aside from the attacks the other reason why this is a problem is because the little boys and girls who watch Pokemon arent able to get their hands on the products without having to have a parent to buy them online at three times the price for instance
The Sliver Swarm Commander Masters Commander Deck set includes 1 ready-to-play White-Blue-Black-Red-Green deck of 100 Magic cards (2 Traditional Foil Legendary Creature cards, 98 nonfoil cards), a 2-card Collector Booster Sample Pack (contains 2 special treatment cards, with 1 Traditional Foil Common or Uncommon and 1 nonfoil or Traditional Foil Rare or Mythic Rare), 1 foil-etched Display Commander (a thick cardstock copy of the commander card with foil etched into the cards border and art), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert, and 1 reference card
Using proxy cards means not waiting on the mail to receive a card just to test with it
That's good and a heavily used effect
