It was basically all the available Frogs in the colors at the time and then the staples you outlined that P masterfully ignored
Green and white have access to some of the best +1/+1 counter synergies in the game , plus the best token-generators and token doublers
Quick to Play, Easy to Learn
It's an incredible pump effect, and because it's attached to a creature and not an Instant or Sorcery, you can find it using green's excellent tutor effects
I dont have the room to go down every single one of them, but here are a few of the most common ones plus some of my own personal fun favorites for when I need to name a random type (like when I cast Gathering Stone): Avatar Beeble Cleric Dog Elf Faerie Goblin Hero Human Hydra Merfolk Ninja Otter Phoenix Rogue Sponge Toy Wizard Zombie Land Subtypes There are five basic land subtypes that you probably know pretty well: Plains, Island, Swamp, Mountain, and Forest
As for other formats, no other tabletop format was touched, but a couple minor changes to MTG Arena-only formats were announced