If you store hundreds of packs, loose packs vastly reduce your warehousing costs
Not to discourage Immersturm Raider supporters, but its a fact
This is the Japanese SM3+ variant of Shining Legends (Sun & Moon era)

Advanced Search Sets Random Syntax Aang's Iceberg Aang, Swift Savior Aang, the Last Airbender Abhorrent Oculus Abuelo, Ancestral Echo Abyssal Harvester Adorned Crocodile Aegis Sculptor Agate Assault Agatha's Soul Cauldron Agent of Kotis Aggressive Negotiations Agrus Kos, Spirit of Justice Airbender Ascension Airbender's Reversal Airbending Lesson Alania's Pathmaker Alchemist's Assistant All-Fates Stalker Aloe Alchemist Ambush Wolf Analyze the Pollen Ancient Adamantoise Ancient Vendetta Angel of Finality Angelic Edict Annie Flash, the Veteran Another Round Anticausal Vestige Antiquities on the Loose Anzrag's Rampage Appa, Loyal Sky Bison Appa, Steadfast Guardian Aquatic Alchemist Arala, Hedron Scaler Arashin Sunshield Araa, Heart of the Spider Archaic's Agony Archdruid's Charm Archenemy's Charm Archmage's Newt Ardyn, the Usurper Ascendant Dustspeaker Ashiok, Wicked Manipulator Assimilation Aegis Aurelia's Vindicator Auron's Inspiration Avatar Yangchen Avatar's Wrath Aven Interrupter Ayli, Eternal Pilgrim Azula, Cunning Usurper Bahamut, Warden of Light Banishing Light Baron Helmut Zemo Beanstalk Wurm Beastbond Outcaster Beetle, Legacy Criminal Behind the Mask Bellowing Bruiser Beluna's Gatekeeper Beseech the Mirror Betrayer's Bargain Beyond the Quiet Bite Down on Crime Black Cat, Cunning Thief Black Widow, Super Spy Blacksnag Buzzard Blazing Crescendo Bogslither's Embrace Boiling Rock Rioter Bonebind Orator

So while coin flip commanders are nowhere near the ban hammer, it may be worth mentioning in a Rule 0 discussion
Family Matters can also afford to drop a single Plains since there are several creatures and a half-dozen mana rocks helping with ramp and mana fixing