Yet another rotating prompt game, one I realized we didn't have! In this case, the goal is to make cards of each type!

The types to be used in this game are those that can appear alone on traditional cards. Currently, those types (in the order we'll go through them) are...

• Creature
• Artifact
• Enchantment
• Instant
• Sorcery
• Planeswalker
• Battle
• Land

We'll cycle through these types within each color identity

• White
• Blue
• Black
• Red
• Green
• Multicolor/Hybrid
• Colorless

Since some card types *coughlandcough* customarily do not have color, we'll make cards with the appropriate identity in each case.

I will begin with White Creature

Serran Mourner

Creature - Angel
Flying, Vigilance, Defender
When Serran Mourner blocks, it loses defender until a creature you control dies.
2/4

Next would be White Artifact.

Angel's Amber
Artifact
Whenever you cast a white spell, you gain 1 life.
: Add .
A feather from one of Serra's chosen, preserved far longer than it's owner.

White enchantment I next, right?

Fortified Prison
Enchantment (C)
When this enchantment enters, exile target creature an opponent controls until this enchantment leaves the battlefield.
: Put a +1/+1 counter on target creature. Activate only as a sorcery.

Take Cover!

Instant
Tap target creature you control and remove it from combat. It gains Hexproof until end of turn.
"Keep your head down in the trenches or lose it." - Sgt. Donnaval

Rapture
Sorcery
Destroy all creatures, then exile all graveyards. You gain 1 life for each creature card exiled this way.

Basri, the Sandmage

Legendary Planeswalker — Basri
: Create a 1/1 colourless Sand creature token with desertwalk.
: Put a +1/+1 counter on each creature you control.
: Exile all nonland permanents target player controls. They create create a Desert land token with ": Add ."

Siege of Thraben

Battle - Siege
When Siege of Thraben enters the battlefield and whenever it is dealt damage, exile target creature and put a moonsilver counter on it
{7}
//
The Helvault Shatters
Enchantment
: Put an exiled creature card with mana value X and a moonsilver counter on it onto the battlefield under your control. Any player may activate this ability, but only when they could cast a sorcery and only once each turn.

Immaculate Palace
Land
Immaculate Palace enters tapped.
When Immaculate Palace enters, create a tapped Treasure token. (It’s an artifact with “, Sacrifice this artifact: Add one mana of any colour.”)
: Add .
King Solomon was known to hoard his wealth, but when he started to build his palace out of gold, that was when his subjects turned on him.

Blue

Hatchling Familiar
Creature - Drake
Flying
When ~ enters, target player returns a creature they control to its owner's hand.
Fresh out of its egg, its first instinct is to set its master's affairs in order.
[1/1]

Detective's Journal

Artifact
, : Scry 1, then Surveil 1, then investigate, then you may collect evidence 3. If you do, untap Detective's Journal.
A detective's journal documents their inner monologue: from hope to despair, from confusion to epiphany.

Presence of the Owl Spirits
Enchantment (C)
When this enchantment enters, draw a card.
, Discard a card: This enchantment becomes a 2/2 Spirit creature with flying in addition to its other types.

Reverse Trigger

Instant
Return target spell to its owner's hand. That player adds mana equal to that spell's mana cost. That mana can't be spent to cast a spell with the same name as that spell.
"Start again, and show me something different this time." - Barrin, to his apprentice.

Official Replacement

Sorcery
Ascend (If you control ten or more permanents, you get the city’s blessing for the rest of the game.)
Create a token that’s a copy of target creature. If you have the city’s blessing, you may put that creature on top of its owner’s library.
A performance review from the bureaucrats of Orazca means only one thing.

Tamiyo, Silver Ascendant

Legendary Planeswalker - Tamiyo
: Put a flying counter on target creature. It's a moonfolk in addition to its other types for as long as it has a flying counter on it.
: Draw a card. If there are three or more moonfolk on the battlefield, instead Scry 2 and draw two cards
: You get an emblem with "You have no maximum hand size" and "Whenever a moonfolk deals combat damage to a player or planeswalker, draw a card."

Invasion of Solphos
Battle - Siege (U)
When this battle enters, draw two cards, then discard a card.

//
Chymical Blast
Enchantment
Catalyze - Sacrifice Chymical Blast, reveal three cards from your hand that share a card type: The owners of up to two target nonland permanents put each of them on their choice of the top or bottom of their library in any order.
Within moments of arriving, the invaders were unsettled by an uncanny chemical smell and an abandoned field of too-lifelike golden statues. Then things got worse.

I think the reason this particular game never sticks is because it doesn't have a natural flow. The ABC game, I just need to know the color wheel and my ABCs. The mana value game, color wheel and counting. This game... there's no natural order to card types. Alphabetizing the card types would help, but I still think the game has a natural hurdle. Obviously I can just look at the OP for reference, but I'm lazy. I've digressed enough.

Falkenrath Abductor

Creature - Vampire
Menace
When this creature enters, you may sacrifice a human. If you do, create two Blood tokens. (They are artifacts with “, , Discard a card, Sacrifice this artifact: Draw a card.”)
Young maidens are so enamoured by his smile, they rarely notice the fangs.
3/2

Chance Encounter

Sorcery - Adventure
Create a 1/1 white Human Noble creature token with lifelink. (Then exile this card. You may cast the creature later from exile.)