The Asleep condition, often referred to as sleep status, is a Special Condition that immobilizes an Active Pokmon, preventing it from attacking or retreating
I considered running A3-086 to reduce dependence on A3-144 and it adds more targets for Pokmon Communication, which is a bonus

Allure of the Unknown Anax, Hardened in the Forge Arena Trickster Aspect of Manticore Blood Aspirant Careless Celebrant Dalakos, Crafter of Wonders Deathbellow War Cry Dreamshaper Shaman Dreamstalker Manticore Escape Velocity Fateful End Final Flare Flummoxed Cyclops Furious Rise Gallia of the Endless Dance Haktos the Unscarred Hero of the Games Hero of the Nyxborn Heroes of the Revel Impending Doom Incendiary Oracle Infuriate Iroas's Blessing Irreverent Revelers Klothys, God of Destiny Kroxa, Titan of Death's Hunger Mischievous Chimera Nyxborn Brute Omen of the Forge Oread of Mountain's Blaze Ox of Agonas Phoenix of Ash Portent of Betrayal Purphoros's Intervention Purphoros, Bronze-Blooded Satyr's Cunning Skophos Maze-Warden Skophos Warleader Slaughter-Priest of Mogis Stampede Rider Storm Herald Storm's Wrath Tectonic Giant Terror of Mount Velus The Akroan War The Triumph of Anax Thrill of Possibility Underworld Breach Underworld Fires Underworld Rage-Hound Warden of the Chained Wrap in Flames

This list took an unbelievably long time to compile, and I still guarantee you I missed one or two
TCGplayer Tip:Get a glimpse of Umbeon's sweet side as this dark eeveelution takes a moment to relax with its trainer
Without it, you would have a fair amount of trouble reliably getting in for combat damage to activate her trigger