SPM is represented by an image of Spider-Man's mask, SPE by the spider icon, and MAR by the Marvel logo
Creatures that arent of the chosen type get -3/-3 until end of turn
(You know Samwise is going to hit him in the head with a pan.) It all makes a lot of sense
Throne of Eldraine used Syr for all its Knights, so that seemed like a good place to start
Animal Sanctuary Aphelia, Viper Whisperer Bestial Menace Blech, Loafing Pest Butch DeLoria, Tunnel Snake Champion of Wits Cobra Trap Endless Swarm Fanatic of Rhonas Fire Snake Hapatra, Vizier of Poisons Honored Hydra Hooded Hydra Kaseto, Orochi Archmage Mystic Snake Ophiomancer Orochi Eggwatcher Orochi Eggwatcher Orochi Hatchery Patagia Viper Patron of the Orochi Pharika, God of Affliction Pick Your Poison (playtest) Rhonas's Last Stand Ribbon Snake Rite of the Serpent Sachi, Daughter of Seshiro Seed the Land Serpent Generator Seshiro the Anointed Shisato, Whispering Hunter Sinuous Striker Snake Basket Snake Pit Snake of the Golden Grove Snakeform Sosuke's Summons Sosuke, Son of Seshiro Tah-Crop Skirmisher Xyris, the Writhing Storm Zodiac Snake
What's important about the design of this card, however, is that it can also sacrifice itself, giving you an easy way to add two card types to your graveyard