Since it gives your creature indestructible, you can ensure your creature not only lives the fight but can attack your opponents again without having to worry about battle destroying it
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Toolbox Buy This Card Notes and Rules Information for Sorin the Mirthless: If you choose not to reveal the card you looked at with Sorin's first loyalty ability, it stays on top of your library

1 Chaos Warp 1 Reverberate 1 Bile Blight 1 Bituminous Blast 1 Brainstorm 1 Dark Ritual Artifact (10) 1 Drach'Nyen 1 Chromatic Lantern 1 Assault Suit 1 Sol Ring 1 Talisman of Creativity 1 Talisman of Dominance 1 Talisman of Indulgence 1 Worn Powerstone 1 Commander's Sphere 1 Wayfarer's Bauble Enchantment (5) 1 The Horus Heresy 1 The Ruinous Powers 1 Nurgle's Rot 1 The Lost and the Damned 1 Warstorm Surge Land (38) 1 Exotic Orchard 1 Foreboding Ruins 1 Sunken Hollow 1 Barren Moor 1 Crumbling Necropolis 1 Molten Slagheap 1 Temple of the False God 1 Command Tower 1 Dismal Backwater 1 Evolving Wilds 1 Forgotten Cave 1 Path of Ancestry 1 Swiftwater Cliffs 1 Terramorphic Expanse 8 Mountain 8 Swamp 8 Island Blue (3) 1 Lord of Change 1 Heralds of Tzeentch 1 Brainstorm Black (14) 1 Blight Grenade 1 Great Unclean One 1 Mandate of Abaddon 1 Mortarion, Daemon Primarch 1 Nurgle's Conscription 1 Plague Drone 1 Poxwalkers 1 Sloppity Bilepiper 1 Tallyman of Nurgle 1 Venomcrawler 1 Nurgle's Rot 1 Decree of Pain 1 Bile Blight 1 Dark Ritual Red (17) 1 Aspiring Champion 1 Bloodthirster 1 Dark Apostle 1 Keeper of Secrets 1 Khrn the Betrayer 1 Knight Rampager 1 Let the Galaxy Burn 1 Bloodcrusher of Khorne 1 Chaos Terminator Lord 1 Herald of Slaanesh 1 Noise Marine 1 Seeker of Slaanesh 1 Past in Flames 1 Blasphemous Act 1 Chaos Warp 1 Reverberate 1 Warstorm Surge Multi colored (18) 1 Be'lakor, the Dark Master 1 Blood for the Blood God

The printing flexibility is very strong
I respect Wizards and the CFP (Commander Format Panel) for acknowledging, and wanting to fix, the problem, but I simply don't believe the solution can come from the top