Astarion, the Decadent Astarion, the Decadent turns your opponents pain into more pain
Pingers are the order of the day, as is a mandatory copy of All Will Be One
That's not to say cards like Champion of Wits aren't useful, but it just feels as though there were better options out there, even at the time that could have helped the deck stay closer to a theme and identity
Rootweaver Druid is one of those cards, letting players search for up to three extra basic lands when it comes into play, under the condition that one of them has to go to you
Manifest dread basically doubled the number of cards with manifest, though it's far from making the mechanic an evergreen one
If you look at the other decks, their themes have only been featured in a couple of sets