MaRo said there was originally a common cycle of Sagas in DOM that represented how different peoples saw Urza.

Litany of the Protector's Regrets
Enchantment — Saga (C)
I - Exile target nonland permanent.
II - You and target opponent each draw a card.
III - You and target opponent each create a 1/1 white Soldier creature token.

Chronicle of the Headmaster's Wisdom

Enchantment - Saga {C}
I, II - Draw a card, then discard a card
III - Draw a card

Whispers of the Traitor's Ambitions
Enchantment - Saga (C)
I, II - Each player loses life equal to the number of lore counters on this.
III - If you have the greatest life total among all players, draw two cards. Otherwise, draw a card.

Relics of the Builder's Legacy
Enchantment — Saga (C)
I - Create a 1/1 red Goblin creature token.
II - You may sacrifice an artifact or creature. If you do, create two tapped Powerstone tokens.
III - You may sacrifice an artifact or creature. If you do, create a 4/4 Vehicle artifact token with flying and crew 1.

Scars of the Ruiner's Mistakes
Enchantment — Saga (C)
I - Destroy up to one target artifact or enchantment.
II, III, IV - Add .

Complete the Legacy
Legendary Sorcery
As an additional cost to cast this spell, sacrifice an artifact, a creature, an enchantment, a land, and a planeswalker.
For each opponent, exile a permanent they control. For the rest of the game, spells with those permanents' names can't be cast. Then, choose a card you own from outside the game or a card you own in exile. If it's a nonland card, you may cast it without paying its mana cost. If it's a land card, put it onto the battlefield.

Iterative Thopter
Artifact Creature — Thopter
Flying
: Exile Iterative Thopter, then return it to the battlefield.
4/4

The Court of the Mer
Legendary Land
When Palace of the Mer enters the battlefield, becomes the target of a spell or ability, or is put into a graveyard from the battlefield, you mill two cards.
: Add
The Otarians have their petty squabbles, but the conspiracies and intrigues of the Mer Empire are deeper than any sea trench and more bewildering than any whirlpool.

Next is Lorwyn/Shadowmoor.

Burrenton Forge-Master
Creature - Kithkin Wizard
When you attach an equipment to ~ for the first time each turn, create a 1/1 white Kithkin creature token.
Equipment you control has "Equip to Kithkin "
After years of tending the forge and watching her senior create new masterpieces, the others of her clan now watch as she repurposes the crude but effective tools of giants, merrows, and boggarts for them.
[2/2]

Burrenton Forge-Tender for reference

Nick
Tribal Enchantment - Rogue Aura (U)
Prowl (You may cast this for its prowl cost if you dealt combat damage to a player this turn with a Rogue.)
Enchant artifact
You control enchanted artifact.
Noggles cheered the advent of pockets - one convenient place to check for things to take.

Morsel-Licker
Creature — Goblin Rogue
Dawn (When this enters the battlefield, transform each other permanent you control with dusk.)
When Morsel-Licker enters the battlefield, scry 2, draw a card, and lose 2 life.
[< Goblin Warrior ]
1/1

Heap-Gorger
Creature — Goblin Warrior
Dusk (When this enters the battlefield, transform each other permanent you control with dawn.)
When Heap-Gorger enters the battlefield, mill two cards. You gain 2 life for each land card milled this way.
[< Goblin Rogue ]
3/3

Countryside Bohemian
Creature - Giant Warrior
~ can't block or be blocked by creatures with power 2 or less.
"Well, there's no way we can stop her from getting our goats without getting squashed, but at least we can get them back since she can't see us."
[4/4]

Community Seeker
Creature — Shapeshifter
Changeling
Each player may look at the top card of their library at any time.
Each player may cast spells that share a creature type with the most common creature type among creatures on the battlefield from the top of their library.
Changelings do not intend to fool or deceive. They merely reflect the world around them.
3/3

Firespout Charm
Sorcery
Choose any:

• ~ deals 3 damage to each creature with flying.
• ~ deals 3 damage to each creature without flying.
• ~ deals 3 damage to each planeswalker.

With the Aurora behind them, the denizens of Lorwyn quickly learned how to accept their darker counterparts and the magic they wielded.

Faceless Pariah
Creature — Shapeshifter
Changeling
As Faceless Pariah enters the battlefield, an opponent chooses a creature type.
Faceless Pariah isn't the chosen creature type.
Other creatures you control that aren't the chosen creature type get +1/+1.
2/2

Field of Closed Blooms
Land
Dawn (When this enters the battlefield, transform each other permanent you control with dusk.)
Field of Closed Blooms enters the battlefield tapped.
: Add or .

Nightblossom Faerie
Creature — Faerie Rogue
Dusk (When this enters the battlefield, transform each other permanent you control with dawn.)
Nightblossom Faerie enters the battlefield tapped.
Flying
1/1

Next is Alara.

Valeron Outrider
Creature - Human Soldier (C)
Conflux (When you cast this spell, if at least three different colors of mana were spent to cast it, copy it. The copy becomes a token.)
The outriders were the first to explore the new opportunities and dangers of Alara's reformed landscapes.
3/2

Mythos of Crucius
Sorcery
Put an artifact card from your hand onto the battlefield. If was spent to cast this spell, you may put an artifact card from your graveyard or an artifact card you own in exile onto the battlefield instead.
The Mad Sphinx both blessed and cursed Esper with his invention of etherium.

Moldrot Skeleton
Creature - Skeleton (U)
When ~ enters the battlefield, it gains indestrctible and deathtouch until the beginning of your next turn.
Unearth
Jund may have introduced the myth of life to Grixis, but that didn't keep them from finding joy in taking it away.
[1/1]

Mythos of Karrthus
Sorcery
Destroy target land. If was spent to cast this spell, return a land card from any graveyard to the battlefield under your control. Otherwise, that land's controller may search their library for a land card, reveal it, put it onto the battlefield tapped, then shuffle.
When a dragon of Jund feels their dominance slipping, they refuse to allow the world to continue on without them. Thus, the Shriek of Flame.