Martyr's Cause

Sacrifice a creature: The next time a source of your choice would deal damage to any target this turn, prevent that damage.

Proper Burial

Whenever a creature you control dies, you gain life equal to that creature's toughness.

Phyrexian Altar

Sacrifice a creature: Add one mana of any color.

Garrison Cat

When Garrison Cat dies, create a 1/1 white Human Soldier creature token.

Sanctifier of Souls

Whenever another creature enters the battlefield under your control, Sanctifier of Souls gets +1/+1 until end of turn.
{2}{W}, Exile a creature card from your graveyard: Create a 1/1 white Spirit creature token with flying.

Doomed Traveler

When Doomed Traveler dies, create a 1/1 white Spirit creature token with flying.

Kithkin Spellduster

Flying
{1}{W}, Sacrifice Kithkin Spellduster: Destroy target enchantment.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Ashnod's Altar

Impassioned Orator

Whenever another creature enters the battlefield under your control, you gain 1 life.

Martyr of Dusk

When Martyr of Dusk dies, create a 1/1 white Vampire creature token with lifelink.

Hunted Witness

When Hunted Witness dies, create a 1/1 white Soldier creature token with lifelink.

Tithe Taker

During your turn, spells your opponents cast cost {1} more to cast and abilities your opponents activate cost {1} more to activate unless they're mana abilities.
Afterlife 1 (When this creature dies, create a 1/1 white and black Spirit creature token with flying.)

Altar of Dementia

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

Fanatical Devotion

Sacrifice a creature: Regenerate target creature.

Luminous Broodmoth

Flying
Whenever a creature you control without flying dies, return it to the battlefield under its owner's control with a flying counter on it.

Moonlit Wake

Whenever a creature dies, you gain 1 life.

Ashes of the Abhorrent

Players can't cast spells from graveyards or activate abilities of cards in graveyards.
Whenever a creature dies, you gain 1 life.

Twilight Shepherd

Flying, vigilance
When Twilight Shepherd enters the battlefield, return to your hand all cards in your graveyard that were put there from the battlefield this turn.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Myr Sire

When Myr Sire dies, create a 1/1 colorless Phyrexian Myr artifact creature token.

Lesser Masticore

As an additional cost to cast this spell, discard a card.
{4}: Lesser Masticore deals 1 damage to target creature.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Desperate Sentry

When Desperate Sentry dies, create a 3/2 colorless Eldrazi Horror creature token.
Delirium — Desperate Sentry gets +3/+0 as long as there are four or more card types among cards in your graveyard.

Ajani's Welcome

Whenever a creature enters the battlefield under your control, you gain 1 life.

Blasting Station

{T}, Sacrifice a creature: Blasting Station deals 1 damage to any target.
Whenever a creature enters the battlefield, you may untap Blasting Station.

Martyr's Bond

Whenever Martyr's Bond or another nonland permanent you control is put into a graveyard from the battlefield, each opponent sacrifices a permanent that shares a card type with it.