Kaldheim

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

Koma, Cosmos Serpent | Legendary Creature | Serpent | This spell can't be countered. At the beginning of each upkeep, create a 3/3 blue Serpent creature token named Koma's Coil. Sacrifice another Serpent: Choose one — • Tap target permanent. Its activated abilities can't be activated this turn. • Koma, Cosmos Serpent gains indestructible until end of turn. | Jesper Ejsing

Moritte of the Frost | Legendary Snow Creature | Shapeshifter | Changeling (This card is every creature type.) You may have Moritte of the Frost enter the battlefield as a copy of a permanent you control, except it's legendary and snow in addition to its other types and, if it's a creature, it enters with two additional +1/+1 counters on it and has changeling. | Eric Deschamps

The Three Seasons | Enchantment | Saga | (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Mill three cards. II — Return up to two target snow permanent cards from your graveyard to your hand. III — Choose three cards in each graveyard. Their owners shuffle those cards into their libraries. | Adam Paquette