Grim Tutor

Search your library for a card, put that card into your hand, then shuffle. You lose 3 life.

Carrion Feeder

This creature can't block.
Sacrifice a creature: Put a +1/+1 counter on this creature.

Fallen Ideal

Enchant creature
Enchanted creature has flying and "Sacrifice a creature: This creature gets +2/+1 until end of turn."
When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

Blasting Station

{T}, Sacrifice a creature: This artifact deals 1 damage to any target.
Whenever a creature enters, you may untap this artifact.

Solemnity

Players can't get counters.
Counters can't be put on artifacts, creatures, enchantments, or lands.

Ashnod's Altar

Phyrexian Altar

Sacrifice a creature: Add one mana of any color.

Cruel Tutor

Search your library for a card, then shuffle and put that card on top. You lose 2 life.

Zur the Enchanter

Flying
Whenever Zur attacks, you may search your library for an enchantment card with mana value 3 or less, put it onto the battlefield, then shuffle.

Devouring Swarm

Flying
Sacrifice a creature: This creature gets +1/+1 until end of turn.

Phyrexian Ghoul

Sacrifice a creature: This creature gets +2/+2 until end of turn.

Bloodthrone Vampire

Viscera Seer

Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Bloodflow Connoisseur

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

Chronozoa

Flying
Vanishing 3 (This creature enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When this creature dies, if it had no time counters on it, create two tokens that are copies of it.

Diabolic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Vampiric Tutor

Demonic Tutor

Nantuko Husk

Altar of Dementia

Sacrifice a creature: Target player mills cards equal to the sacrificed creature's power.