1998 Brian Seldens 1998 World Champion deck is a combo deck making use of Survival of the Fittest and Recurring Nightmare to tutor up creatures, put them in the graveyard, then sneak them into play
Charizard GX SSR and Umbreon GX SSR drive demand
Sticking with the Golgari guild doesnt give us too much there
It has, to name a few, Modular, Affinity, Madness, Storm, Delirium, Suspend and Converge, among others
The Ult is unlikely to ever happen (as you are most likely going to minus 4 or something when you play him), but if it does occur, the quality of the 7 permanents being put on the battlefield will generally be high enough to win the game
Greven, Predator Captain brings this deck in a different direction