The reasons for this 500% price rise aren't exactly clear
Once per turn, you can activate 1 of the following effects: -Target 1 card in your graveyard and 1 monster on your opponent's side of the field, banish the targets.(This card cannot attack during the turn this effect is used.) -This monster can attack up to 3 times during each battle phase this turn, but the last 2 attacks cannot be direct attacks
It lets you play your opponents' cards, and in some cases, can just lock them out of the game if you keep taking their land drops
If there are no legal targets to choose from, the target isn't changed
Though the owner may need Instant Fusion to put that second Level 5 Machine monster on the board, a Toon Deck can still reliably put that infamous omni-negate on the board
This collection certainly wont make a big dent in a home down payment, so just enjoy the cards as they are