Skyknight Legionnaire

Returned Pastcaller

Flying
When this creature enters, return target Spirit, instant, or sorcery card from your graveyard to your hand.

Ritual of Restoration

Return target artifact card from your graveyard to your hand.

Moorland Drifter

Delirium — This creature has flying as long as there are four or more card types among cards in your graveyard.

Ghostly Sentinel

Emissary of the Sleepless

Flying
When this creature enters, if a creature died this turn, create a 1/1 white Spirit creature token with flying.

Apothecary Geist

Flying
When this creature enters, if you control another Spirit, you gain 3 life.

Quintorius, Field Historian

Spirits you control get +1/+0.
Whenever one or more cards leave your graveyard, create a 3/2 red and white Spirit creature token.

Soldier of the Grey Host

Flash
Flying
When this creature enters, target creature gets +2/+0 until end of turn.

Kami of Ancient Law

Sacrifice this creature: Destroy target enchantment.

Guardian of Pilgrims

When this creature enters, target creature gets +1/+1 until end of turn.

Teshar, Ancestor's Apostle

Flying
Whenever you cast a historic spell, return target creature card with mana value 3 or less from your graveyard to the battlefield. (Artifacts, legendaries, and Sagas are historic.)

Vessel of Ephemera

{2}{W}, Sacrifice this enchantment: Create two 1/1 white Spirit creature tokens with flying.