It also reads: "Spells you cast cost one less to cast for each card type they share with cards exiled with Cemetery Prowler." This means that if you exile a creature with Cemetery Prowler, your creatures cost one less to cast
Remember, your new undead fleet is unable to block at first
Both are basically three destruction options in one Scheme and offer nice card advantage over time for targeted removal
(The Winds of Change type being stronger than the ones that refill the hand.) It is a little bit of stretch, but I'm trying to find any inkling of discard
Black Widow, Double Agent Body Double Double Cleave Double Cross Double Deal Double Dip Double Down Double Header Double Jump Double Major Double Negative Double Play Double Stroke Double Take Double Trouble Double Vision Doublecast Holographic Double Liliana's Other Contract (double-faced)(playtest) Osgood, Operation Double Plant a Sapling (double-faced)(playtest) Redoubled Stormsinger See Double Spark Double Spark Double Stunt Double Work a Double
Even though Superior Spider-Man doesn't target the card in your graveyard, the Cauldron's graveyard hate is still relevant disruption