If you want to go the best storytelling route, combine the Hand, Eye, and Book of Darkness to create the actual Vecna, an 8/8 indestructible Zombie God that gets the triggered abilities of all three
While no new cards from Two Legends [OP-08] have been added to this deck, there have been certain cards which have restored this decks elite meta viability thanks to current metagame changes
It is exactly the sort of great card that is worth a little splash
Krarks Other Thumb (and associated dice mechanics) Coin flips have been a part of black-border Magic since the start, but somehow rolling dice never had the same level of legitimacy, and it was pigeonholed as an Un-set mechanic until very recently
4x Swamps
While that is great when bringing an opponents life total down, its not good when you have a 3 damage spell against a big Creature with 6 Toughness