Unlike today, when each player can have a copy of a legend on the battlefield, in 2000, only one copy of a legend could exist on the battlefield, period, between both players
allows an action with a cost of 5 or less to be played for free whenever the Genie quests
In practice, it means an opposing Blasphemous Act will only deal five damage to your board, and a Chandras Ignition will deal double damage to everything that isnt yours (and incidentally, only half to your creatures)
Prosper, Tome-Bound requires considerably more setup to use optimally, but if your deck is already playing a lot of cards that let you play cards from exile, the value it generates from its Treasure tokens can be absolutely silly
This Forge Anew Bonus card is the first time that a Lord of the Rings: Tales of Middle-earth card is getting a Secret Lair reprint