Combos Utilizing Grave-Defiler

redirect damage to you to grave defiler. you gain life equal to the damage redirected and grave defiler regenerates for 1b

fill graveyard with grave defiler & other zombies somehow. use xroads to put 5 zombies on top of library (top card is defiler). play defiler & put 4 zombie creatures into your hand

play defiler get hopefully four zombies in your hand and cast ghastly to create at least a 4/4

This works really good for zombie decks, make sure you have lots of zombie cards in the deck including a few of the last 3 but 4 of grave defiler. You have card 3 or 4 in your hand and then you play grave defiler. Big boost also helps Soulless One!