Is the sleeve a bit too loose and so the cards constantly fall out at the slightest provocation (and maybe get bent somehow on the way)
Aeroboros is a bit more multi-purpose, being a Book of Moon for a monster other than itself

Aerial Formation Agility Bobblehead Ajani's Presence Ajani, Nacatl Avenger Alibou, Ancient Witness Angel of Salvation Apocalypse Runner Arc Lightning Arc Mage Arrow Volley Trap Atlantis Attacks Aurelia's Fury Avacyn's Judgment Ballista Charger Basalt Ravager Beast Mode Bespoke Battlewagon Bessie, the Doctor's Roadster Blaze of Glory Blessings of Nature Blinding Flare Bogardan Hellkite Boulderfall Bounty of the Hunt Broodlord Bulwark Ox Burn at the Stake Burner Rocket Call the Coppercoats Captain America's Motorcycle Carriage of Dreams Cauldron Haze Cauldron of Souls Chandra, Flameshaper Change of Plans Chaos Mutation Chong and Lily, Nomads Cleaving Skyrider Clever Concealment Cloud's Limit Break Colossal Heroics Conflagrate Contagion Crashing Wave Cruel Alliance Cruel Feeding Cultural Exchange Depthshaker Titan Descent of the Dragons Desperate Stand Detention Chariot Divine Resilience Dogpile Dracosaur Auxiliary Dragonlord Atarka Dune Drifter Eerie Interlude Electrolyze Elusive Otter Elven Rite Embolden Endurance Bobblehead Energy Arc Explosive Singularity Expose the Culprit Feather, Radiant Arbiter Fell Beast of Mordor Fiery Justice Filigree Vector Fire // Ice

In a game like MTG where clarity matters so much, this has concerned many MTG players
100 Magic the Gathering Uncommons No commons, basic lands, or silver/gold bordered cards