Jareth, Golgari Scavenger

You may pay {0} instead of paying a creatures scavenge cost.
Whenever you scavenge a card, you may put the top 3 cards of library into your graveyard. If you do, add {g}{g}{b}{b} to your mana pool.
Whenever a card is put into a graveyard from play, draw a card.
To waste is to waste. To die is to live.