It was a cool design to put on a creature because it would always be at least a 1/1, as it counted itself
This can be very useful if you have cards like Spirited Companion or Ravenous Chupacabra, so you'll have guaranteed value every turn

Primal Genesis Commander (1) Planeswalker (1) Creatures (28) Angel of Sanctions Atla Palani, Nest Tender Cliffside Rescuer Desolation Twin Doomed Artisan Dragonmaster Outcast Emmara Tandris Feldon of the Third Path Flamerush Rider Garruk's Packleader Giant Adephage Heart-Piercer Manticore Marisi, Breaker of the Coil Ohran Frostfang Rampaging Baloths Roc Egg Sakura-Tribe Elder Scaretiller Selesnya Eulogist Soul of Zendikar Tahngarth, First Mate Tectonic Hellion Thragtusk Trostani, Selesnya's Voice Vitu-Ghazi Guildmage Voice of Many Wayfaring Temple Wingmate Roc Instants (10) Beast Within Druid's Deliverance Fresh Meat Momentous Fall Naya Charm Rootborn Defenses Second Harvest Slice in Twain Sundering Growth Trostani's Judgment Sorceries (10) Cultivate Explore Farseek Full Flowering Ghired's Belligerence Harmonize Hate Mirage Hour of Reckoning Phyrexian Rebirth Shamanic Revelation Enchantments (6) Colossal Majesty Commander's Insignia Elemental Bond Growing Ranks Intangible Virtue Song of the Worldsoul Artifacts (5) Idol of Oblivion Lightning Greaves Mimic Vat Sol Ring Soul Foundry Lands (39) Ash Barrens Blossoming Sands Boros Garrison Cinder Glade Command Tower Evolving Wilds Exotic Orchard Gargoyle Castle Graypelt Refuge Gruul Turf Jungle Shrine Kazandu Refuge Krosan Verge Myriad Landscape Naya Panorama Rogue's Passage Rugged Highlands Selesnya Sanctuary Sungrass Prairie Terramorphic Expanse Forest x8 Mountain x4 Plains x7 The Commanders This Naya deck has populate as its main theme

GODEEPER: Curious how the new OP-16 leaders stack up against these legends
Niv-Mizzet Reborn literally resurrects as the manifestation of the Guildpact during the War of the Spark
With just one hit, Marisi flips the table and turns entire armies against other players