Stocking the graveyard could be mere fuel for Varina, or it could provide an avenue for fueling powerful zombies and zombie-typal cards like Hashaton, Scarab's Fist, The Scarab God, and Gisa and Geralf
Ignoring summoning sickness on your Wizards helps you dig for whatever answer you need at a given time, or to just refill your hand once you've cast a bunch of spells right before the end of your last opponent's turn
Since Urborg, Tomb of Yawgmoth makes all lands into Swamps, so long as someone at the table has a copy in play, you can recur Bubbling Muck and untap lands as often as your cards will allow before casting a spell like Exsanguinate or Torment of Hailfire to win
If you are building for the game against a mill deck, you've sacrificed the efficiency of your deck against every other match
Since these sets were printed in small numbers, players had been able to boast about their collection, and it really was impressive if you managed to get a hold of a decent chunk of these sets
And, as with any card that doubles, Prodigy does have combo potential, though with how complex it can be to set these combos up, you might be better off just relying on the raw power of doubling specific abilities: 1