From a gameplay point of view, The One Ring is pretty awesome and you can do a lot worse than having the other rings represented as the iconic Sol Ring
Questing To quest with a character card, exert the card by turning it on its side
Some other fogs, like Inkshield, prevent damage thats done to you , which means that planeswalkers are still dealt damage like normal
If you somehow control two Delney, Streetwise Lookouts, abilities of creatures you control with power 2 or less trigger three times
I should note that Sin can be built as something of an "Oops All Lands" deck with the goal of loading up your graveyard and then hoping to pull a huge number of them back out of the yard
Firstly, for the Doo-ay Noo-lah drop, we have Command Tower