Kaldheim

Old-Growth Troll | Creature | Troll Warrior | Trample When Old-Growth Troll dies, if it was a creature, return it to the battlefield. It's an Aura enchantment with enchant Forest you control and "Enchanted Forest has '{T}: Add {G}{G}' and '{1}, {T}, Sacrifice this land: Create a tapped 4/4 green Troll Warrior creature token with trample.'" | Jesper Ejsing

Boreal Outrider | Snow Creature | Elf Warrior | Whenever you cast a creature spell, if {S} of any of that spell's colors was spent to cast it, that creature enters the battlefield with an additional +1/+1 counter on it. ({S} is mana from a snow source.) | Alex Konstad

Glittering Frost | Snow Enchantment | Aura | Enchant land Enchanted land is snow. Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color. | Lucas Graciano

Gladewalker Ritualist | Creature | Shapeshifter | Changeling (This card is every creature type.) Whenever another creature named Gladewalker Ritualist enters the battlefield under your control, draw a card. | Irina Nordsol

Esika, God of the Tree | Legendary Creature | God | Vigilance {T}: Add one mana of any color. Other legendary creatures you control have vigilance and "{T}: Add one mana of any color." | Johannes Voss

Realmwalker | Creature | Shapeshifter | Changeling (This card is every creature type.) As Realmwalker enters the battlefield, choose a creature type. You may look at the top card of your library any time. You may cast creature spells of the chosen type from the top of your library. | Zack Stella

King Harald's Revenge | Sorcery | | Until end of turn, target creature gets +1/+1 for each creature you control and gains trample. It must be blocked this turn if able. | Lorenzo Mastroianni

Mammoth Growth | Instant | | Target creature gets +4/+4 until end of turn. Foretell {G} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.) | Ilse Gort

Jorn, God of Winter | Legendary Snow Creature | God | Whenever Jorn attacks, untap each snow permanent you control. | Magali Villeneuve

Icehide Troll | Snow Creature | Troll Warrior | {S}{S}: Icehide Troll gets +2/+0 and gains indestructible until end of turn. Tap it. (Damage and effects that say "destroy" don't destroy it. {S} can be paid with one mana from a snow source.) | Andrey Kuzinskiy

Horizon Seeker | Creature | Human Warrior | Boast — {1}{G}: Search your library for a basic land card, reveal it, put it into your hand, then shuffle. (Activate only if this creature attacked this turn and only once each turn.) | Matt Stewart

Gnottvold Recluse | Creature | Spider | Reach | Nicholas Gregory

Broken Wings | Instant | | Destroy target artifact, enchantment, or creature with flying. | Lars Grant-West

Fall of the Impostor | Enchantment | Saga | (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I, II — Put a +1/+1 counter on up to one target creature. III — Exile a creature with the greatest power among creatures target opponent controls. | Eric Deschamps

Battle for Bretagard | Enchantment | Saga | (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Create a 1/1 white Human Warrior creature token. II — Create a 1/1 green Elf Warrior creature token. III — Choose any number of artifact tokens and/or creature tokens you control with different names. For each of them, create a token that's a copy of it. | Igor Kieryluk

The Bears of Littjara | Enchantment | Saga | (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Create a 2/2 blue Shapeshifter creature token with changeling. II — Any number of target Shapeshifter creatures you control have base power and toughness 4/4. III — Choose up to one target creature or planeswalker. Each creature with power 4 or greater you control deals damage equal to its power to that permanent. | Randy Gallegos

Harald, King of Skemfar | Legendary Creature | Elf Warrior | Menace (This creature can't be blocked except by two or more creatures.) When Harald, King of Skemfar enters the battlefield, look at the top five cards of your library. You may reveal an Elf, Warrior, or Tyvar card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. | Grzegorz Rutkowski

Sarulf, Realm Eater | Legendary Creature | Wolf | Whenever a permanent an opponent controls is put into a graveyard from the battlefield, put a +1/+1 counter on Sarulf, Realm Eater. At the beginning of your upkeep, if Sarulf has one or more +1/+1 counters on it, you may remove all of them. If you do, exile each other nonland permanent with mana value less than or equal to the number of counters removed this way. | Chris Rahn

Svella, Ice Shaper | Legendary Snow Creature | Troll Warrior | {3}, {T}: Create a colorless snow artifact token named Icy Manalith with "{T}: Add one mana of any color." {6}{R}{G}, {T}: Look at the top four cards of your library. You may cast a spell from among them without paying its mana cost. Put the rest on the bottom of your library in a random order. | Andrew Mar