While eminence is an ability word and has no real effect on the rules, none of the cards with it have an activated eminence ability either
Read on, and I'll make sure you're well aware what you should be hunting for when you're out there ripping packs
An Elendas Hierophant, can split into 15 or 20 new 1/1s
Alex Wilder, Runaway Bloodbraid Challenger Chainweb Aracnir Charred Graverobber Chronomantic Escape Cling to Dust Confession Dial Desdemona, Freedom's Edge Elspeth, Sun's Nemesis Escape Artist Escape Tunnel Escape Velocity From the Catacombs Fruit of Tizerus Glimpse of Freedom Jurassic Park Kroxa, Titan of Death's Hunger Loathsome Chimera Lunar Hatchling Mogis's Favor Nethergoyf Ox of Agonas Pharika's Spawn Phlage, Titan of Fire's Fury Phoenix of Ash Polukranos, Unchained Run for Your Life Satyr's Cunning Sentinel's Eyes Skyway Robber Sleep of the Dead Stormcage Containment Facility Sweet Oblivion The Aesir Escape Valhalla The Grim Captain's Locker The Master of Keys Tizerus Charger Underworld Breach Underworld Charger Underworld Rage-Hound Uro, Titan of Nature's Wrath Voracious Typhon Woe Strider
They're 100% ignorable
It also makes your spells immune to counters and comes with a two-life ward that applies to all your other creatures