Start with what makes sense for your collection right now and adjust as it grows
It can target any player, so its not strictly worse than any other card, but it just seems like a bad portent, when you cant just have Card not found

Kiora, the Rising Tide (Variant) Kaya, Spirits Justice Intrude on the Mind Vanish into Eternity Weaponize the Monsters Teferi, Temporal Pilgrim Defiler of Faith Forest (Variant) Island (Variant) Mountain (Variant) Swamp (Variant) Plains (Variant) Shanna, Purifying Blade Norika Yamazaki, the Poet Heiko Yamazaki, the General Seeker of Insight Thalia, Guardian of Thraben Thalia, Guardian of Thraben Wind Strider Academy Journeymage Pore Over the Pages Jhoira of the Ghitu Captain Sisay Thalia, Guardian of Thraben Thalia, Guardian of Thraben Jorn, God of Winter Kaldring, the Rimestaff Thornmantle Striker Neyith of the Dire Hunt Liliana, Waker of the Dead (Variant) Relentless Pursuit Calix, Destinys Hand Klothys, God of Destiny Vivien, Champion of the Wilds Narset, Parter of Veils Kaya, Bane of the Dead Kasmina, Enigmatic Mentor Teyo, the Shieldmage Seraph of the Scales Citywatch Sphinx Vraska, Regal Gorgon Serras Guardian Soldier Token Chandra, Torch of Defiance Stromkirk Occultist Identity Thief Thalia, Heretic Cathar Ancestral Mask Swell of Growth Honored Hierarch (Promo) Titania, Protector of Argoth Guardians of Meletis Dulcet Sirens Thoughtrender Lamia Graceblade Artisan Narset Transcendent Monastery Mentor Quiet Contemplation Sylvan Safekeeper Narset, Enlightened Master

Firemane Commando Best suited for decks that want to be attacking with a lot of creatures every turn, Firemane Commando is a nice source of card advantage
It makes tokens to trigger Welcoming Vampire and Tocasias Welcome when flipped
The sweet melody of angels or the loud fireworks that proverbially go off in someone's head when they pull the card they want from a booster pack is sweet bliss