One features an entirely new character, Kaito Shizuki
At least so long as Rotting Regisaur is one of the top offensive creatures in the format
If you're new, however, putting your card side-by-side with an online version is a good start
Mana dorks, Viscera Seers, Azusas, Grand Abolishers, Scute Swarms, Laboratory Maniacs, Foundry Inspectors
Alpine Grizzly Ashcoat Bear Ayula, Queen Among Bears Balduvian Bears Bear Cub Bosco, Just a Bear Copper Host Crusher Dragon-Scarred Bear Drover Grizzly Druid's Familiar Evercoat Ursine Exuberant Wolfbear Forest Bear Golden Bear Goreclaw, Terror of Qal Sisma Grizzly Bears Hei Bai, Forest Guardian Hurska Sweet-Tooth Lumra, Bellow of the Woods Mother Bear Owlbear Owlbear Cub Pale Bears Professor of Zoomancy Rampaging Yao Guai Razorclaw Bear River Bear Runeclaw Bear Ruxa, Patient Professor Spectral Bears Spirit of the Aldergard Striped Bears Studious First-Year Surrak and Goreclaw Ulvenwald Bear Ursine Monstrosity Vastlands Scavenger Vivien's Grizzly Werebear Wilson, Refined Grizzly
There are endless cards in the format with massive mana values that do a splashy thing, so keeping these on the list doesnt make a ton of sense
