When a land dork you control deals damage to someone, you draw a card, so it's like a limited Coastal Piracy on legs in the Command Zone
Golgari steps up its game after seeing the uncommons, Izzet not so much
Basic Energy : These cards correspond to Pokmon types like Fire, Water, Grass , and Electric

Agent of Shauku Aggressive Mining Akki Avalanchers Arcane Spyglass Argothian Wurm Army Ants Aura Fracture Baloth Prime Bog Elemental Bog Glider Brutal Suppression Cephalid Scout Chain of Silence Chain of Vapor Coastal Hornclaw Constant Mists Crop Rotation Custody Battle Cycle of Renewal Demonic Hordes Dreamscape Artist Dust Bowl Dwarven Armory Dwarven Landslide Earthquake Dragon Edge of Autumn Elvish Reclaimer Entish Restoration Evendo Brushrazer Everythingamajig Exalted Dragon Excavating Anurid Excavation Falling Timber Fault Riders Foul Spirit Glacial Chasm Goblin Firebug Goblin Razerunners Goblin Trenches Gruul Guildmage Hammer of Purphoros Harrow Hearthhull, the Worldseed Highway Robbery Kavaron, Memorial World Land Equilibrium Larval Scoutlander Lesser Gargadon Lithatog Magma Rift Magma Vein Mana Vortex Molten Man, Inferno Incarnate Need for Speed Overgrown Estate Pegasus Stampede Phyrexian War Beast Polar Kraken Pollen Remedy Psychic Vortex Rath's Edge Raze Reaping the Rewards Redcap Melee Redrock Sentinel Renewal Ripchain Razorkin Roiling Regrowth Ruinous Minotaur Rushing River Scouring Swarm

Mice were too powerful and did see constructed play, but now many players are sick of seeing them
The flavor text on Pidgeot's card explains how it often hunts for Magikarp by scouring rivers at high speeds to snatch them from the water, which is exactly what the card depicts