Thrun, Endurance of Mirrodin
Legendary Creature — Troll Shaman
, Remove a -1/-1 counter from a creature you control: That creature gains hexproof and indestructible until end of turn.
"I have seen Mirrodin die many times. And yet, we persist."
3/3

Nahiri, Builder of New Empire
Legendary Planeswalker — Nahiri
Compleated
: Create an Equipment artifact token with "Equipped creature gets +1/+1," living weapon, and equip .
: Exile target nonland permanent you don’t control until target artifact you control leaves the battlefield.
: Destroy target artifact with mana value X or less. Create two tokens that are copies of that artifact.

Karn, Phyrexia's Figurehead
Legendary Planeswalker — Karn (M)
Compleated
: Reveal the top card on your library. If it's an artifact card, a Phyrexian card, or a card with compleated this way, put it in your hand. Otherwise, put it in your graveyard.
: Proliferate.
: Exile target nonland permanent. Its controller creates a 3/3 colorless Phyrexian Golem artifact creature token.

The Panopticon
Legendary Land (M)
Each player plays with their hand revealed.
: Add . Each player may activate this once per turn, but only if a land card entered their hand this turn while their hand was revealed.

Kamigawa

Aoha, General of the First Emperor
Legendary Creature — Human Samurai Monk
First strike, lifelink
, Exile a Samurai you control: Create an 2/2 white Monk creature token with first strike, lifelink. Scry 2.
"Now, united at last under Kyodai’s guidance, we lay down our weapons and open our minds.”
2/2

Mirrorshell Genbu
Artifact Creature - Turtle
~ and equipped creature have protection from instants
Reconfigure
[2/3]

Satoru's Tattoo Shop
Artifact — Fortification
Whenever fortified land becomes tapped, target creature gets a sticker attached to it and you create a tapped treasure token.

Fortify: Sacrifice two treasures (Attach to target land you control. Fortify only as a sorcery. This card enters the battlefield unattached and stays on the battlefield if the land leaves.)

"I always wanted to open a business in the heart of the Eiganjo." — Satoru Umezawa, Tattoo expert

Harness the Arcane Energies
Instant
As an additional cost to cast this spell, discard a card.
Draw two cards. Then, create a Treasure token for each Spirit, Arcane, or enchantment card discarded to cast this spell.
Splice onto instant or sorcery—, Discard a card
The soratami learned to steal energy from the spirit realm, but it was the akki who learned to amplify it.

Miko of Towering Might

Creature - Human Shaman
At the beginning of your upkeep, if you control a spirit and/or a shrine, put a +1/+1 counter on up to one creature you control.
1/1

Hidetsugu Takes An Apprentice
Enchantment — Saga
I, II - Reveal the top card on your library. You lose life equal to its mana value. If you control a Demon, put that card in your hand. Otherwise, you may play that card this turn.
III - Exile Hidetsugu Takes An Apprentice and return it to the battlefield tapped.

Ningyō of Kobo
Enchantment Creature — Human Shaman
When Ningyō of Kobo dies, discard any number of cards. If you do, exile that many cards from the top of your library. Until the end of your next turn, you may cast nonland cards exiled this way. If you cast a spell this way, pay life equal to its mana value rather than paying its mana cost.
3/3

Suzaku Homage
Artifact Creature - Bird
Flying
: Add .
Equipped creature has ": Add one mana of this creature's colors."
Reconfigure
[1/1]

Ravnica is next.

Afterlife Tactician —
Creature — Spirit Advisor (R)
Haunt (When this creature dies, exile it haunting target creature.)
Afterlife Tactician and haunted creature have “Creatures get +1/+1 for each creature haunting them”.
2/2

Glassbell Watcher
Creature — Turtle Jellyfish
This creature enters the battlefield with a hexproof counter.
Splice onto creature
The mirrored walls of Hull Clade laboratories are used for 360-degree observation of subjects. The exposure of spies and threats is a side benefit.
1/1

Carnarium Fanatic
Creature - Human Rogue
~ gets +2/+2 as long as you have one or less cards in your hand.
Spectacle
[2/2]

Howling Banneret
Creature — Human Soldier
Mentor, menace
Whenever Howling Banneret mentors a creature, put a menace counter on that creature.
3/1

Apprentice of the Old Ways
Creature - Elf Shaman
Riot
: Add .
[1/2]

Mat’Selesnya Prayer Room —
Artifact (R)
Spells you cast have convoke. (Your creatures can help cast your spells. Each creature you tap while casting spells pays for or one mana of that creature’s colour.)
Creatures you control lose all abilities and are 1/1 green Plants.

Devkarin Catacombs
Land - Swamp Forest
~ enters the battlefield tapped unless there are exactly two basic land types among lands you control.

Im guessing Dominaria is next?