Nemesis

Sacrifice Seal of Doom: Destroy target nonblack creature. It can't be regenerated.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) {2}, {T}: Search your library for a Mercenary permanent...

When Rathi Fiend enters the battlefield, each player loses 3 life. {3}, {T}: Search your library for a Mercenary permanent card with mana value 3 o...

{1}{B}{B}, {T}: Destroy target tapped nonblack creature. {3}, {T}: Search your library for a Mercenary permanent card with mana value 3 or less, pu...

{B}, {T}, Discard a card: Target creature gets -1/-1 until end of turn.

Fading 3 (This creature enters the battlefield with three fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If y...

When Phyrexian Driver enters the battlefield, other Mercenary creatures get +1/+1 until end of turn.

Fading 5 (This enchantment enters the battlefield with five fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If...

Enchant creature Fading 1 (This enchantment enters the battlefield with one fade counter on it. At the beginning of your upkeep, remove a fade cou...

{B}{B}, Pay half your life, rounded up: Destroy target nonblack creature. It can't be regenerated.

If you control a Swamp, you may sacrifice a creature rather than pay this spell's mana cost. Each player exiles two cards from their hand.

{B}, Sacrifice a creature: Target opponent reveals their hand. You choose a card from it. That player discards that card. Activate only as a sorcery.

If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost. All creatures get -2/-2 until end o...

{1}{B}, {T}, Discard a card: Choose a card name. Exile the top six cards of your library, then reveal cards from the top of your library until you ...

When Death Pit Offering enters the battlefield, sacrifice all creatures you control. Creatures you control get +2/+2.

If you control a Swamp, you may sacrifice a creature rather than pay this spell's mana cost. Creatures you control get +2/+0 until end of turn.

Defender (This creature can't attack.) {1}{B}: Regenerate Carrion Wall.

Flying Belbe's Percher can block only creatures with flying.

Flying Battlefield Percher can block only creatures with flying. {1}{B}: Battlefield Percher gets +1/+1 until end of turn.

Flying (This creature can't be blocked except by creatures with flying or reach.) Other black creatures get +1/+1. Nonblack creatures get -1/-1.

{1}{B}, Discard a creature card: Volrath the Fallen gets +X/+X until end of turn, where X is the discarded card's converted mana cost.

Fading 5 (This enchantment enters the battlefield with five fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If...

{B}, Sacrifice a creature: Target opponent reveals their hand. You choose a card from it. That player discards that card. Activate this ability onl...

If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost. All creatures get -2/-2 until end o...