I remember hearing about a deck that Charlie Catino (our current Director of New Business in R&D) played where he kept using Timetwisters to keep shuffling graveyards back into libraries
You can play one of these either as a Clearwater Pathway and be able to generate blue mana, or as Murkwater Pathway, a land that generates black mana
It wouldn't be a Marvel Comics Magic: The Gathering crossover set without an appearance from Wolverine, the most famous member of the X-Men
Faithless Looting, Cathartic Reunion and Shriekhorn fill your graveyard with dredgers and payoff cards and dredge those cards once your yard is full
Based around scrying and casting high value instants and sorceries, Elminster's static ability reduces the mana cost of the next instant or sorcery you would cast by the number of cards you looked at the last time you scried
For the purposes of this list, Im only considering cards with the return from graveyard text, or sometimes put into play from the graveyard text, not cards that allow us to play cards and lands from graveyards