Ostracize

Target opponent reveals their hand. You choose a creature card from it. That player discards that card.

Phyrexian Broodlings

{1}, Sacrifice a creature: Put a +1/+1 counter on this creature.

Phyrexian Debaser

Flying
{T}, Sacrifice this creature: Target creature gets -2/-2 until end of turn.

Devout Harpist

{T}: Destroy target Aura attached to a creature.

Phyrexian Defiler

{T}, Sacrifice this creature: Target creature gets -3/-3 until end of turn.

Phyrexian Denouncer

{T}, Sacrifice this creature: Target creature gets -1/-1 until end of turn.

Phyrexian Plaguelord

{T}, Sacrifice this creature: Target creature gets -4/-4 until end of turn.
Sacrifice a creature: Target creature gets -1/-1 until end of turn.

Phyrexian Reclamation

{1}{B}, Pay 2 life: Return target creature card from your graveyard to your hand.

Plague Beetle

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Rank and File

When this creature enters, green creatures get -1/-1 until end of turn.

Sick and Tired

Two target creatures each get -1/-1 until end of turn.

Sleeper's Guile

Enchant creature
Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)
When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

Subversion

At the beginning of your upkeep, each opponent loses 1 life. You gain life equal to the life lost this way.

Swat

Destroy target creature with power 2 or less.
Cycling {2} ({2}, Discard this card: Draw a card.)

Erase

Tethered Skirge

Flying
Whenever this creature becomes the target of a spell or ability, you lose 1 life.

Urza's Legacy