Order of the White Shield

Protection from black
{W}: Order of the White Shield gains first strike until end of turn.
{W}{W}: Order of the White Shield gets +1/+0 until end of turn.

Akroma, Angel of Wrath

Flying, first strike, vigilance, trample, haste, protection from black and from red

Sword of Feast and Famine

Equipped creature gets +2/+2 and has protection from black and from green.
Whenever equipped creature deals combat damage to a player, that player discards a card and you untap all lands you control.
Equip {2}

Kormus Bell

All Swamps are 1/1 black creatures that are still lands.

Angry Mob

Trample
During your turn, Angry Mob's power and toughness are each equal to 2 plus the number of Swamps your opponents control. During turns other than yours, Angry Mob's power and toughness are each 2.

Circle of Protection: Black

{1}: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

White Shield Crusader

Protection from black
{W}: White Shield Crusader gains flying until end of turn.
{W}{W}: White Shield Crusader gets +1/+0 until end of turn.

Light of Day

Wall of Light

Defender (This creature can't attack.)
Protection from black

Karma

At the beginning of each player's upkeep, Karma deals damage to that player equal to the number of Swamps they control.

Apostle of Purifying Light

Protection from black (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything black.)
{2}: Exile target card from a graveyard.

Drought

At the beginning of your upkeep, sacrifice Drought unless you pay {W}{W}.
Spells cost an additional "Sacrifice a Swamp" to cast for each black mana symbol in their mana costs.
Activated abilities cost an additional "Sacrifice a Swamp" to activate for each black mana symbol in their activation costs.

Crusading Knight

Protection from black
Crusading Knight gets +1/+1 for each Swamp your opponents control.

Major Teroh

Flying
{3}{W}{W}, Sacrifice Major Teroh: Exile all black creatures.

Karmic Guide

Flying, protection from black
Echo {3}{W}{W} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Karmic Guide enters, return target creature card from your graveyard to the battlefield.

White Knight

First strike (This creature deals combat damage before creatures without first strike.)
Protection from black (This creature can't be blocked, targeted, dealt damage, or enchanted by anything black.)

Sword of Sinew and Steel

Equipped creature gets +2/+2 and has protection from black and from red.
Whenever equipped creature deals combat damage to a player, destroy up to one target planeswalker and up to one target artifact.
Equip {2}

Rune of Protection: Black

{W}: The next time a black source of your choice would deal damage to you this turn, prevent that damage.
Cycling {2} ({2}, Discard this card: Draw a card.)

Black Scarab

Enchant creature
Enchanted creature can't be blocked by black creatures.
Enchanted creature gets +2/+2 as long as an opponent controls a black permanent.

Angel of Jubilation

Flying
Other nonblack creatures you control get +1/+1.
Players can't pay life or sacrifice creatures to cast spells or activate abilities.

Absolute Grace

All creatures have protection from black.

Akroma's Memorial

Creatures you control have flying, first strike, vigilance, trample, haste, and protection from black and from red.