While proving that cards can come off of the Reserved List is a big deal in and of itself, perhaps more important is the reason: Wizards stated, in black and white, that community support for the change made it happen
For example, if the opponent is searching their library for a basic land card, you can't have them find a different card, such as a creature card
You can use Fake Your Own Death to bring back your Plaguecrafter to double-edict or target something like Gonti to get a second trigger
One of those is Liberty Prime, Recharged
You can absolutely tap your Birds of Paradise for mana in response to your opponent using Sudden Shock to kill it
Even with 40 life and Tevals Lifelink, you will need some ways to keep yourself topped up if youre running this deck