The rules text isn't necessarily tied to its name or a previous card, but it does have strong holiday themes and plays out well

Adaptive Sporesinger Armored Scrapgorger Atraxa, Grand Unifier Atraxa, Grand Unifier Atraxa, Praetors' Voice Belbe, Corrupted Observer Blight Mamba Blightsower Thallid Blightwidow Bloated Contaminator Branchblight Stalker Brutalizer Exarch Burnished Dunestomper Cankerbloom Chancellor of the Tangle Chrome Host Hulk Cinderslash Ravager Contagious Vorrac Contaminant Grafter Converter Beast Copper Host Crusher Copper Longlegs Cystbearer Death-Hood Cobra Defiler of Vigor Elvish Vatkeeper Etali, Primal Sickness Evolved Spinoderm Evolving Adaptive Ezuri, Claw of Progress Ezuri, Stalker of Spheres Glissa Sunslayer Glissa's Courier Glissa's Retriever Glissa, Herald of Predation Glissa, the Traitor Glistener Elf Ich-Tekik, Salvage Splicer Ichorspit Basilisk Ixhel, Scion of Atraxa Lattice-Blade Mantis Malady Invoker Maul Splicer Migloz, Maze Crusher Mycosynth Fiend Necrogen Rotpriest Oil-Gorger Troll Omnath, Locus of All Paladin of Predation Phyrexian Hydra Phyrexian Swarmlord Plague Nurse Plaguemaw Beast Plated Kilnbeast Polukranos, Engine of Ruin Predation Steward Putrefax Quilled Slagwurm Rot Wolf Rotted Hystrix Rustvine Cultivator Skyclave Invader Skyscythe Engulfer Slaughter Singer Spinebiter Tainted Observer Tangle Angler Tel-Jilad Fallen Thundering Tanadon Tyrranax Atrocity Tyrranax Rex Venerated Rotpriest

A goblin one next please
Their designs reflect modern influences from fashion, music, and animation, making them feel like fully realized characters rather than just functional game pieces
Conclusion Im a guy who knows what he wants, which is being able to take my turn knowing that my opponents typically wont be able to stop me from doing powerful things
That means spells like Lightning Bolt, Chaos Warp, or Vandalblast get a second life, no mana needed