Soltari Monk

Protection from black
Shadow (This creature can block or be blocked by only creatures with shadow.)

Soltari Champion

Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever this creature attacks, other creatures you control get +1/+1 until end of turn.

Disenchant

Light of Day

Bonesplitter

Ghostly Prison

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Honor of the Pure

Maze of Shadows

{T}: Add {C}.
{T}: Untap target attacking creature with shadow. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Soltari Priest

Protection from red
Shadow (This creature can block or be blocked by only creatures with shadow.)

Tocasia's Welcome

Whenever one or more creatures you control with mana value 3 or less enter, draw a card. This ability triggers only once each turn.

Soltari Visionary

Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever this creature deals damage to a player, destroy target enchantment that player controls.

Soltari Crusader

Shadow (This creature can block or be blocked by only creatures with shadow.)
{1}{W}: This creature gets +1/+0 until end of turn.

Force of Virtue

If it's not your turn, you may exile a white card from your hand rather than pay this spell's mana cost.
Flash
Creatures you control get +1/+1.

Soltari Foot Soldier

Shadow (This creature can block or be blocked by only creatures with shadow.)

Soltari Trooper

Shadow (This creature can block or be blocked by only creatures with shadow.)
Whenever this creature attacks, it gets +1/+1 until end of turn.