Ghostly Possession

Enchant creature
Enchanted creature has flying.
Prevent all combat damage that would be dealt to and dealt by enchanted creature.

Twilight Drover

Whenever a creature token leaves the battlefield, put a +1/+1 counter on Twilight Drover.
{2}{W}, Remove a +1/+1 counter from Twilight Drover: Create two 1/1 white Spirit creature tokens with flying.

Unruly Mob

Whenever another creature you control dies, put a +1/+1 counter on Unruly Mob.

Reprisal

Destroy target creature with power 4 or greater. It can't be regenerated.

Island

Midnight Haunting

Create two 1/1 white Spirit creature tokens with flying.

Curse of Exhaustion

Enchant player
Enchanted player can't cast more than one spell each turn.

Radiant Purge

Exile target multicolored creature or multicolored enchantment.

Intangible Virtue

Creature tokens you control get +1/+1 and have vigilance.

Sun Titan

Vigilance
Whenever Sun Titan enters or attacks, you may return target permanent card with mana value 3 or less from your graveyard to the battlefield.

Honor of the Pure

Plains

Spectral Procession

Create three 1/1 white Spirit creature tokens with flying.

Goldnight Redeemer

Flying
When Goldnight Redeemer enters, you gain 2 life for each other creature you control.

Doomed Traveler

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

Elixir of Immortality

{2}, {T}: You gain 5 life. Shuffle Elixir of Immortality and your graveyard into their owner's library.

Geist-Honored Monk

Vigilance
Geist-Honored Monk's power and toughness are each equal to the number of creatures you control.
When Geist-Honored Monk enters, create two 1/1 white Spirit creature tokens with flying.

Drogskol Captain

Flying
Other Spirit creatures you control get +1/+1 and have hexproof. (They can't be the targets of spells or abilities your opponents control.)

Spirit Mantle

Enchant creature
Enchanted creature gets +1/+1 and has protection from creatures.