The Folly of Kirtar
Enchantment — Saga
I - Return target artifact or enchantment card from your graveyard to the battlefield.
II - Put a +1/+1 counter on each creature you control.
III - Exile all nonland permanents.

The Folly of Aboshan
Enchantment — Saga
I, II - You gain control of target artifact or land.
III - Each player separates permanents they control into two piles and returns one pile of an opponent's choice to their owners' hands.

Kuberr, Numena of Greed
Legendary Creature — God
As an additional cost to cast Kuberr, Numena of Greed, sacrifice any number of creatures with a total of five or more in their mana costs.
You may cast Kuberr from your graveyard.
Whenever you play a Swamp, draw a card.
5/5

The Folly of Kamahl
Enchantment — Saga
I, II - Put a +1/+1 counter, a menace counter, and a trample counter on target creature you control. If that creature doesn't have first strike, put a first strike counter on it. If it does, put a double strike counter on it.
III - Each player sacrifices a random permanent that's not a land or enchantment.

The Folly of Seton

Enchantment -- Saga (R)
[I] Target creature you control fights target creature you don't control.
[II] Return target creature card from your graveyard to your hand.
[III] Target creature you control fights target creature you don't control.

Seton didn't really do anything wrong, IIRC, but I don't remember any other green-aligned characters in that storyline.

No, green didn't take control of the Mirari, but it did get a lot of Mirari juice in Onslaught.

Venser, Urborg Inventor
Legendary Planeswalker — Venser
When Venser, Urborg Inventor enters the battlefield, create The Ambulator, a legendary artifact token with ": Exile target creature or planeswalker. Return it to the battlefield at the beginning of the next end step." It enters the battlefield tapped.
: Untap up to one artifact you control.
: Until your next turn, legendary artifacts you control gain ": Return target creature or spell to its owner's hand."

Mirari Juice —
Instant (R)
Copy target instant or sorcery spell you control. You may choose new targets for the copy.

Amiqat, Suq'Ata Capital
Legendary Land (R)
, : Each player draws a card. For each player, add one mana of any color unless that player discards a card. Activate this ability only as an instant.
The traders of Jamuraa call it home.

Lorwyn/Shadowmoor up next.

Clear Meadow Watcher
Creature — Kithkin Peasant
When Clear Meadow Watcher enters the battlefield, if or was spent to cast it, draw a card. Otherwise, each player that controls a Kithkin draws a card.
Through the thoughtweft, a single kithkin's alarm can travel across miles of fields faster than any merrow can swim.
1/3

Clearstream Cutter —
Creature — Merfolk Rogue (C)
When Clearstream Cutter enters the battlefield, draw a card.
1/1

Decoy Masterling
Creature — Shapeshifter
Changeling
, Discard a Shapeshifter card: Return target card from your graveyard to your hand if it shares a creature type other than Shapeshifter with the discarded card.
1/1

Ashling’s Cinderstrike —
Tribal Instant — Elemental (R)
Ashling’s Cinderstrike deals 2 damage to any target.
When you activate a third ability of an Elemental each turn, you may return Ashling’s Cinderstrike from your graveyard to your hand.

Carving-Bone Perfect
Creature — Elf Shaman
Deathtouch
When Carving-Bone Perfect enters the battlefield, target land or non-Elf creature becomes a copy of Carving-Bone Perfect.
"Be thankful for this gift."
2/2

Aether Charm
Instant (U)
Choose one—

• Exile target creature, then return it to the battlefield under its owner's control.
• Put a creature card with converted mana cost 3 or less from your hand onto the battlefield.
• Target player can't cast spells this turn.

Haunting Strawman —
Artifact Creature — Scarecrow (R)
Whenever a -1/-1 counter is placed on a creature, put a deathtouch counter on that creature.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner’s control with a -1/-1 counter on it.)
2/2

Moonglove Garden
Land
Dawn (You may have this card enter the battlefield on either face. When it enters the battlefield with dawn, transform each permanent you control with dusk.)
: Add .
The delicate flowers have the perfume of ambition.

Moonlit Sanctuary
Land
Dusk (You may have this card enter the battlefield on either face. When it enters the battlefield with dusk, transform each permanent you control with dawn.)
: Add .
The delicate light have the beauty of safety.

Next is Alara.

Godseeker Martyr —
Creature — Human Druid (R)
When a creature with power 5 or greater enters the battlefield, sacrifice Godseeker Martyr. If you do, destroy all creature with power 4 or less.
2/3

Truthseeker Sigiled
Creature — Human Knight
Exalted
Whenever Truthseeker Sigiled deals combat damage to an opponent, draw that many cards.
"I fight for the most sacred of honors: Truth."
0/1

Vis Extraction

Sorcery (C)
Destroy target creature. Put a +1/+1 counter on each Zombie creature you control.
On any other world, vis would be treasured. On Grixis, it is consumed.

Clawed Burster
Creature — Skeleton
Whenever Clawed Burster or another creature you control enters the battlefield from the graveyard, it gets +2/+0 until end of turn.
Unearth
2/1