As long as enchanted artifact isn't a creature, it's an artifact creature with power and toughness each equal to its mana value.
{2}
Baku Altar
Artifact
Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Baku Altar.
{2}, {T}, Remove a ki counter from Baku Altar: Create a 1/1 colorless Spirit creature token.
{1}{U}
Burrog Befuddler
Creature - Frog Wizard
Flash
When Burrog Befuddler enters the battlefield, target creature an opponent controls gets -1/-0 until end of turn.
2 /
1
{3}{U}
Capture Sphere
Enchantment - Aura
Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
When Capture Sphere enters the battlefield, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
{4}{W}{U}{B}
Chromium, the Mutable
Legendary Creature - Elder Dragon
Flash
This spell can't be countered.
Flying
Discard a card: Until end of turn, Chromium, the Mutable becomes a Human with base power and toughness 1/1, loses all abilities, and gains hexproof. It can't be blocked this turn.
7 /
7
{1}{W}
Clarion Spirit
Creature - Spirit
Whenever you cast your second spell each turn, create a 1/1 white Spirit creature token with flying.
2 /
2
{X}{U}{U}
Curse of the Swine
Sorcery
Exile X target creatures. For each creature exiled this way, its controller creates a 2/2 green Boar creature token.
{1}{W}{U}{B}
Deny the Witch
Instant
Counter target spell, activated ability, or triggered ability. Its controller loses life equal to the number of creatures you control.
{1}{W}{U}
Detention Sphere
Enchantment
When Detention Sphere enters the battlefield, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent.
When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control.
{2}{B}{B}
Devouring Greed
Sorcery - Arcane
As an additional cost to cast this spell, you may sacrifice any number of Spirits.
Target player loses 2 life plus 2 life for each Spirit sacrificed this way. You gain that much life.
{3}{U}
Ethereal Investigator
Creature - Spirit
Flying
When Ethereal Investigator enters the battlefield, investigate X times, where X is the number of opponents you have. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")
Whenever you draw your second card each turn, create a 1/1 white Spirit creature token with flying.
2 /
3
{W}
Ghost-Lit Redeemer
Creature - Spirit
{W}, {T}: You gain 2 life.
Channel -- {1}{W}, Discard Ghost-Lit Redeemer: You gain 4 life.
1 /
1
{1}{U}
Ghost-Lit Warder
Creature - Spirit
{3}{U}, {T}: Counter target spell unless its controller pays {2}.
Channel -- {3}{U}, Discard Ghost-Lit Warder: Counter target spell unless its controller pays {4}.
1 /
1
{3}{B}
Gibbering Kami
Creature - Spirit
Flying
Soulshift 3 (When this creature dies, you may return target Spirit card with mana value 3 or less from your graveyard to your hand.)
2 /
2
{3}{B}
Go-Shintai of Hidden Cruelty
Legendary Enchantment Creature - Shrine
Deathtouch
At the beginning of your end step, you may pay {1}. When you do, destroy target creature with toughness X or less, where X is the number of Shrines you control.
2 /
2
{3}{W}
Go-Shintai of Shared Purpose
Legendary Enchantment Creature - Shrine
Vigilance
At the beginning of your end step, you may pay {1}. If you do, create a 1/1 colorless Spirit creature token for each Shrine you control.
1 /
3
{1}{U}
Guardian of Solitude
Creature - Spirit
Whenever you cast a Spirit or Arcane spell, target creature gains flying until end of turn.
1 /
2
{2}{W}{W}
Hallowed Haunting
Enchantment
As long as you control seven or more enchantments, creatures you control have flying and vigilance.
Whenever you cast an enchantment spell, create a white Spirit Cleric creature token with "This creature's power and toughness are each equal to the number of Spirits you control."
{1}{W}
Haunted Library
Enchantment
Whenever a creature an opponent controls dies, you may pay {1}. If you do, create a 1/1 white Spirit creature token with flying.
{2}{W}{W}{B}{B}
Identity Crisis
Sorcery
Exile all cards from target player's hand and graveyard.
{2}{B}{B}
Infernal Kirin
Legendary Creature - Kirin Spirit
Flying
Whenever you cast a Spirit or Arcane spell, target player reveals their hand and discards all cards with that spell's mana value.
3 /
3
{3}{W}{W}
Innocence Kami
Creature - Spirit
{W}, {T}: Tap target creature.
Whenever you cast a Spirit or Arcane spell, untap Innocence Kami.
2 /
3
--
Izzet Boilerworks
Land
Izzet Boilerworks enters the battlefield tapped.
When Izzet Boilerworks enters the battlefield, return a land you control to its owner's hand.
{T}: Add {U}{R}.
{6}{U}{U}
Jadzi, Oracle of Arcavios
Legendary Creature - Human Wizard
Discard a card: Return Jadzi, Oracle of Arcavios to its owner's hand.
Magecraft -- Whenever you cast or copy an instant or sorcery spell, reveal the top card of your library. If it's a nonland card, you may cast it by paying {1} rather than paying its mana cost. If it's a land card, put it onto the battlefield.
5 /
5
--
Journey to the Oracle
Sorcery
You may put any number of land cards from your hand onto the battlefield. Then if you control eight or more lands, you may discard a card. If you do, return Journey to the Oracle to its owner's hand.
5 /
5
{3}{B}{B}
Junji, the Midnight Sky
Legendary Creature - Dragon Spirit
Flying, menace
When Junji, the Midnight Sky dies, choose one --
• Each opponent discards two cards and loses 2 life.
• Put target non-Dragon creature card from a graveyard onto the battlefield under your control. You lose 2 life.
5 /
5
{2}{W}
Kabuto Moth
Creature - Spirit
Flying
{T}: Target creature gets +1/+2 until end of turn.
1 /
2
{1}{U}
Kaijin of the Vanishing Touch
Creature - Spirit
Defender (This creature can't attack.)
Whenever Kaijin of the Vanishing Touch blocks a creature, return that creature to its owner's hand at end of combat. (Return it only if it's on the battlefield.)
0 /
3
{4}{U}{U}
Kairi, the Swirling Sky
Legendary Creature - Dragon Spirit
Flying, ward {3}
When Kairi, the Swirling Sky dies, choose one --
• Return any number of target nonland permanents with total mana value 6 or less to their owners' hands.
• Mill six cards, then return up to two instant and/or sorcery cards from your graveyard to your hand.
6 /
6
{3}{W}
Kami of Old Stone
Creature - Spirit
1 /
7
{1}{U}{U}
Kami of Twisted Reflection
Creature - Spirit
Sacrifice Kami of Twisted Reflection: Return target creature you control to its owner's hand.
2 /
2
{U}{U}
Kami of the Crescent Moon
Legendary Creature - Spirit
At the beginning of each player's draw step, that player draws an additional card.
1 /
3
{5}{W}{W}
Kami of the Honored Dead
Creature - Spirit
Flying
Whenever Kami of the Honored Dead is dealt damage, you gain that much life.
Soulshift 6 (When this creature dies, you may return target Spirit card with mana value 6 or less from your graveyard to your hand.)
3 /
5
{5}{W}
Kami of the Palace Fields
Creature - Spirit
Flying, first strike
Soulshift 5 (When this creature dies, you may return target Spirit card with mana value 5 or less from your graveyard to your hand.)
3 /
2
{2}{B}
Kami of the Waning Moon
Creature - Spirit
Flying
Whenever you cast a Spirit or Arcane spell, target creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)
1 /
1
{2}{W}{B}
King of the Oathbreakers
Legendary Creature - Spirit Noble
Flying
Whenever King of the Oathbreakers or another Spirit you control becomes the target of a spell, it phases out. (Treat it and anything attached to it as though they don't exist until your next turn.)
Whenever King of the Oathbreakers or another Spirit you control phases in, create a tapped 1/1 white Spirit creature token with flying.
3 /
3
{4}{U}
Kiri-Onna
Creature - Spirit
When Kiri-Onna enters the battlefield, return target creature to its owner's hand.
Whenever you cast a Spirit or Arcane spell, you may return Kiri-Onna to its owner's hand.
2 /
2
{3}{W}{W}
Kiyomaro, First to Stand
Legendary Creature - Spirit
Kiyomaro, First to Stand's power and toughness are each equal to the number of cards in your hand.
As long as you have four or more cards in hand, Kiyomaro has vigilance.
Whenever Kiyomaro deals damage, if you have seven or more cards in hand, you gain 7 life.
* /
*
{W}
Lantern Kami
Creature - Spirit
Flying
1 /
1
{2}{W}
Loran of the Third Path
Legendary Creature - Human Artificer
Vigilance
When Loran of the Third Path enters the battlefield, destroy up to one target artifact or enchantment.
{T}: You and target opponent each draw a card.
2 /
1
{3}
Medicine Bag
Artifact
{1}, {T}, Discard a card: Regenerate target creature.
{2}{W}
Nikko-Onna
Creature - Spirit
When Nikko-Onna enters the battlefield, destroy target enchantment.
Whenever you cast a Spirit or Arcane spell, you may return Nikko-Onna to its owner's hand.
2 /
2
{W}{U}{B}
Obscura Ascendancy
Enchantment
Whenever you cast a spell, if its mana value is equal to 1 plus the number of soul counters on Obscura Ascendancy, put a soul counter on Obscura Ascendancy, then create a 2/2 white Spirit creature token with flying.
As long as there are five or more soul counters on Obscura Ascendancy, Spirits you control get +3/+3.
{3}{U}
Polymorph
Sorcery
Destroy target creature. It can't be regenerated. Its controller reveals cards from the top of their library until they reveal a creature card. The player puts that card onto the battlefield, then shuffles all other cards revealed this way into their library.
{1}{U}{U}
Polymorphist's Jest
Instant
Until end of turn, each creature target player controls loses all abilities and becomes a blue Frog with base power and toughness 1/1.
{4}{U}
Quillmane Baku
Creature - Spirit
Whenever you cast a Spirit or Arcane spell, you may put a ki counter on Quillmane Baku.
{1}, {T}, Remove X ki counters from Quillmane Baku: Return target creature with mana value X or less to its owner's hand.
3 /
3
{2}{B}{B}
Ritual of Soot
Sorcery
Destroy all creatures with mana value 3 or less.
{2}{U}
River Kaijin
Creature - Spirit
1 /
4
{3}{B}
Ruthless Technomancer
Creature - Human Wizard
When Ruthless Technomancer enters the battlefield, you may sacrifice another creature you control. If you do, create a number of Treasure tokens equal to that creature's power.
{2}{B}, Sacrifice X artifacts: Return target creature card with power X or less from your graveyard to the battlefield. X can't be 0.
2 /
4
{1}{W}
Seal Away
Enchantment
Flash
When Seal Away enters the battlefield, exile target tapped creature an opponent controls until Seal Away leaves the battlefield.
{4}{U}
Shinen of Flight's Wings
Creature - Spirit
Flying
Channel -- {U}, Discard Shinen of Flight's Wings: Target creature gains flying until end of turn.
3 /
3
{W}
Silence
Instant
Your opponents can't cast spells this turn.
{1}{W}
Spirit Bonds
Enchantment
Whenever a nontoken creature enters the battlefield under your control, you may pay {W}. If you do, create a 1/1 white Spirit creature token with flying.
{1}{W}, Sacrifice a Spirit: Target non-Spirit creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
{1}{W}
Tallowisp
Creature - Spirit
Whenever you cast a Spirit or Arcane spell, you may search your library for an Aura card with enchant creature, reveal it, put it into your hand, then shuffle.
1 /
3
{3}{U}
The Bath Song
Enchantment - Saga
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II -- Draw two cards, then discard a card.
III -- Shuffle any number of target cards from your graveyard into your library. Add {U}{U}.
{U}
The Blackstaff of Waterdeep
Legendary Artifact
You may choose not to untap The Blackstaff of Waterdeep during your untap step.
Animate Walking Statue -- {1}{U}, {T}: Another target nontoken artifact you control becomes a 4/4 artifact creature for as long as The Blackstaff of Waterdeep remains tapped. Activate only as a sorcery.
{5}{U}
Tomorrow, Azami's Familiar
Legendary Creature - Spirit
If you would draw a card, look at the top three cards of your library instead. Put one of those cards into your hand and the rest on the bottom of your library in any order.
1 /
5
{1}{W}
True Identity
Enchantment
Whenever True Identity or another permanent you control is turned face up, scry 1, then draw a card. This ability triggers only once each turn.
Disguise {W} (You may cast this card face down for {3} as a 2/2 creature with ward {2}. Turn it face up any time for its disguise cost.)
{4}{U}{U}
True Polymorph
Instant
Target artifact or creature becomes a copy of another target artifact or creature.
{2}{W}
Twilight Drover
Creature - Spirit
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.
1 /
1
{2}{B}
Unforgiving One
Creature - Spirit
Menace (This creature can't be blocked except by two or more creatures.)
Whenever Unforgiving One attacks, return target creature card with mana value X or less from your graveyard to the battlefield, where X is the number of modified creatures you control. (Equipment, Auras you control, and counters are modifications.)
2 /
3
{U}
Wandering Ones
Creature - Spirit
1 /
1
{3}{U}
Whispering Wizard
Creature - Human Wizard
Whenever you cast a noncreature spell, create a 1/1 white Spirit creature token with flying. This ability triggers only once each turn.
3 /
2
{5}{W}{W}
Yomiji, Who Bars the Way
Legendary Creature - Spirit
Whenever a legendary permanent other than Yomiji, Who Bars the Way is put into a graveyard from the battlefield, return that card to its owner's hand.