
Declaration in Stone | Sorcery | | Exile target creature and all other creatures its controller controls with the same name as that creature. That player investigates for each nontoken creature exiled this way. | Tyler Jacobson

Hanweir Militia Captain | Creature | Human Soldier | At the beginning of your upkeep, if you control four or more creatures, transform Hanweir Militia Captain. | David Palumbo

Thalia's Lieutenant | Creature | Human Soldier | When Thalia's Lieutenant enters the battlefield, put a +1/+1 counter on each other Human you control.
Whenever another Human enters the battlefield under your control, put a +1/+1 counter on Thalia's Lieutenant. | Johannes Voss

Rattlechains | Creature | Spirit | Flash
Flying
When Rattlechains enters the battlefield, target Spirit gains hexproof until end of turn.
You may cast Spirit spells as though they had flash. | Lius Lasahido

Thing in the Ice // Awoken Horror | Creature // Creature | Horror // Kraken Horror | Defender
Thing in the Ice enters with four ice counters on it.
Whenever you cast an instant or sorcery spell, remove an ice counter from Thing in the Ice. Then if it has no ice counters on it, transform it. // When this creature transforms into Awoken Horror, return all non-Horror creatures to their owners' hands. | Svetlin Velinov

Asylum Visitor | Creature | Vampire Wizard | At the beginning of each player's upkeep, if that player has no cards in hand, you draw a card and you lose 1 life.
Madness {1}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.) | Bastien L. Deharme

Avacyn's Judgment | Sorcery | | Madness {X}{R} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
Avacyn's Judgment deals 2 damage divided as you choose among any number of targets. If this spell's madness cost was paid, it deals X damage divided as you choose among those permanents and/or players instead. | Victor Adame Minguez

Scourge Wolf | Creature | Wolf Horror | First strike
Delirium — Scourge Wolf has double strike as long as there are four or more card types among cards in your graveyard. | Jama Jurabaev

Cryptolith Rite | Enchantment | | Creatures you control have "{T}: Add one mana of any color." | Zack Stella

Deathcap Cultivator | Creature | Human Druid | {T}: Add {B} or {G}.
Delirium — Deathcap Cultivator has deathtouch as long as there are four or more card types among cards in your graveyard. | Karla Ortiz

Brain in a Jar | Artifact | | {1}, {T}: Put a charge counter on Brain in a Jar, then you may cast an instant or sorcery spell with mana value equal to the number of charge counters on Brain in a Jar from your hand without paying its mana cost.
{3}, {T}, Remove X charge counters from Brain in a Jar: Scry X. | Daniel Ljunggren

Corrupted Grafstone | Artifact | | Corrupted Grafstone enters the battlefield tapped.
{T}: Choose a color of a card in your graveyard. Add one mana of that color. | Bastien L. Deharme