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.)

Mox Pearl

Plains

Mesa Pegasus

Flying; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Samite Healer

{T}: Prevent the next 1 damage that would be dealt to any target this turn.

Northern Paladin

{W}{W}, {T}: Destroy target black permanent.

Armageddon

Pearled Unicorn

Benalish Hero

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Lance

Enchant creature
Enchanted creature has first strike.

Savannah Lions

Black Lotus

{T}, Sacrifice Black Lotus: Add three mana of any one color.

Crusade

Black Vise

As Black Vise enters, choose an opponent.
At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in their hand minus 4.