Umezawa's Kani-Keibo
Artifact Creature - Crab (M)
Whenever ~ or the creature its attached to deals combat damage, put a jitte counter on ~.
At the beginning of combat each turn, you may remove a jitte counter from ~. If you do, choose one:

• ~ or the creature its attached gets +2/+2 until end of turn.
• Target creature gets -1/-1 until end of turn.
• You gain 2 life.

Reconfigure
[1/3]

Cybersecurity Lockgate
Artifact Land — Gate
Cybersecurity Lockgate enters the battlefield tapped.
: Add or .
Merge-gates bridge the mortal and spirit realms. The Futurists have bridged the mortal and digital realms.

Next is Ravnica.

Lavinia's Quandary
Enchantment (R)
At the beginning of each combat phase, detain up to one target creature. If you do, its controller may populate.
"I once believed our laws would provide Ravnica the security to flourish. But after two wars with extraplanar forces, I wonder if our city is growing in defiance of our decrees rather than deference to them."

Counterfeit Identity
Sorcery
Target creature you control becomes a copy of target other creature.
Cipher
"Who am I? Who are you?"

Recover Casualties
Instant
Surveil 4. At the beginning of your next upkeep, target creature card in your graveyard gains scavenge until end of turn. Its scavenge cost is equal to , where is its base power.
"The Dimir may be better at finding bodies, but we the Golgari are better at using them."

Transmute -
Sorcery
Discard a card at random. Search your library for a card with the same mana value as that card, reveal it, put it into your hand, then shuffle.

Clan Affiliate
Creature - Human Mutant
Riot, Graft 1
Whenever ~ is grafted onto another creature, that creature gets haste until end of turn.
Although the original the Vigean Combine was no more, their experiements lingered, at best shunned by city as a whole; something the Scab Clan knew all too well.
[0/0]

The Bound Gorgon
Legendary Creature — Gorgon
The Bound Gorgon enters the battlefield detained.
Deathtouch
Whenever an opponent casts a creature spell, that creature spell gains "When this creature enters the battlefield, detain The Bound Gorgon."
When The Bound Gorgon dies, return her to the battlefield transformed.
2/2

Vraska, Ochran Vengeant
Legendary Planeswalker — Vraska
: Until your next turn, whenever a creature you control dies, draw a card and gain 1 life.
: Create a 1/1 black and green Assassin creature token with deathtouch.
: Target opponent sacrifices all creatures they control. For each creature sacrificed this way, create a Treasure token.

Guildless Cluestone
Artifact
: Add
, , Sacrifice ~: Draw a card.
Tales of the Firemind's scheme years ago inspired the guildless youth to fashion their own inscribed "markers".

Backalley Peep-Room
Land (U)
: Add .
, , sacrifice Backalley Peep-Room: Return target card that you put into your graveyard while surveiling this turn to your hand.

Next is Dominaria.

sounds more like a Rakdos space

Siege of Cabal City
Battle — Siege
: Exile target card from an opponent's graveyard. If an artifact card, creature card, or card with flashback is exiled this way, create a 1/1 white Soldier creature token.


Teroh, Triumphant Major
Legendary Creature — Bird Soldier
Vigilance, flying
Other Birds you control have vigilance.
Other Soldiers you control have flying.
, , Sacrifice two Soldiers: Exile target artifact or creature.
2/3

Crumbling Tolaria —
Legendary Artifact — Fortification (R)
At the beginning of your upkeep, put a flood counter on fortified land. Then, if it has three or more flood counters, sacrifice it.
As long as fortified land has a flood counter on it, it's an Island.
As long as fortified land has two or more flood counters on it, it has ": Add for each artifact you control".
Fortify

Challenge at the Madaran Rift
Legendary Battle — Siege
Whenever you remove one or more defense counters from Challenge at the Madaran Rift, you loses 2 life.


Triumph of Nicol Bolas
Sorcery
Exile target creature or planeswalker an opponent controls. Exile a card from that player's graveyard. Look at that player's hand and exile a card from it. Search that player's library for a card, exile it, then that player shuffles. Choose one of the cards exiled this way and cast it without paying its mana cost.
As Leshrac went for the killing blow, the dragon began to laugh.

Rewrite the Past
Instant
Choose target historic permanent, then choose one:

• Destroy it if is an artifact.
• Put up to two lore counters on it if it is a Saga.
• ~ deals 3 damage to its controller if it legendary.

Glimpse of Llanowar
Sorcery
Until end of turn, whenever you cast an Elf spell, scry 1. If this was the second time you scried this way, draw two cards.

Clash of Akroma and Phage
Legendary Battle — Siege
When this Battle enters the battlefield, choose a creature type.
Creatures you control of the chosen creature type have vigilance and deathtouch.
[4]

Karona, Mother of Magic
Legendary Creature — Avatar
Ward
You can't spend mana to cast spells.
Each spell you control has convoke. You may only tap creatures that share a creature type to cast a spell with its convoke ability.
5/5

Urza's Paragon                   
Artifact Creature — Golem               (M)
Prototype                     
                          1/1
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Other creatures have base power equal to Urza's Paragon's.
A yardstick by which he measured all others.
                          5/5

Sanctum, City of Refuge
Land
: Add for each creature you control that doesn't share a creature type with another creature on the battlefield.
Caught between the crusades of Akroma and the predation of Phage, Zagorka led the other discarded and forgotten to the abandoned city.

Next is Lorwyn.

River Dunker
Creature - Merfolk Wizard (C)
Whenever River Dunker becomes tapped, exile up to one target creature you don't control until River Dunker becomes tapped again or leaves play.
"Come now, it's refreshing — promise!"
2/4

Trickbind Sprite
Creature - Faerie Wizard (U)
Flash, Flying
When ~ enters the battlefield, you may counter target activated or triggered ability.
[2/1]