Firstly, because they are insanely overpowered, and have been since they were created in 1993
The best creature types have formed officially-supported tribes, with Elf being one of the oldest and most popular of those tribes, from the 1990s to the present
Landfall Sin | Commander | Stephen Johnson Commander (1) 1 Sin, Spira's Punishment Creatures (22) 1 Aesi, Tyrant of Gyre Strait 1 Archelos, Lagoon Mystic 1 Avenger of Zendikar 1 Beast Whisperer 1 Bristly Bill, Spine Sower 1 Eternal Witness 1 Greensleeves, Maro-Sorcerer 1 Kheru Goldkeeper 1 Lotus Cobra 1 Mossborn Hydra 1 Mulldrifter 1 Rampaging Baloths 1 Roil Elemental 1 Scute Swarm 1 Scythecat Cub 1 Springbloom Druid 1 Springheart Nantuko 1 Sylvan Safekeeper 1 Tatyova, Benthic Druid 1 Timeless Witness 1 Tireless Provisioner 1 Ulvenwald Hydra Instants (16) 1 AEtherize 1 Aetherspouts 1 Assassin's Trophy 1 Beast Within 1 Constant Mists 1 Counterspell 1 Entish Restoration 1 Harrow 1 Heroic Intervention 1 Moment's Peace 1 Pongify 1 Rapid Hybridization 1 Roiling Regrowth 1 Sultai Charm 1 Swan Song 1 Tragic Slip Sorceries (12) 1 Boundless Realms 1 Farseek 1 Genesis Wave 1 Last March of the Ents 1 Rampant Growth 1 Reshape the Earth 1 Rishkar's Expertise 1 Scapeshift 1 Soul's Majesty 1 Tempt with Discovery 1 Traverse the Outlands 1 Villainous Wealth Enchantments (2) 1 Parallel Lives 1 Retreat to Coralhelm Artifacts (6) 1 Amulet of Vigor 1 Arcane Signet 1 Desecrated Tomb 1 Seer's Sundial 1 Sol Ring 1 The Great Henge Planeswalker (1) 1 Nissa of Shadowed Boughs Lands (40) 7 Forest 7 Island 7 Swamp 1 Command Tower 1 Deathcap Glade 1 Dreamroot Cascade 1 Evolving Wilds 1 Exotic Orchard 1 Fabled Passage 1 Foreboding Landscape 1 Lotus Field 1 Misty Rainforest 1 Morphic Pool 1 Myriad Landscape 1 Polluted Delta 1 Rejuvenating Springs 1 Shipwreck Marsh 1 Terramorphic Expanse 1 Undergrowth Stadium 1 Verdant Catacombs 1 Yavimaya, Cradle of Growth 1 Zagoth Triome Mike and I have some overlap
January Qualifier Play-In (Best-of-One) January 18, 6 a.m
If you have a way to cheat it into play on an opponent's turn, say with a Master Transmuter, you can watch your opponents over commit to the battlefield just to disrupt all their plans
