Black Cecil, Dark Knight would be better positioned in a Metagame that didn't have Mono Red and Rakdos Prowess as two of the best decks
Additionally, glimmers can also challenge opponents, which is often a key strategy for ensuring victory
1 Thundering Falls 1 Hall of Storm Giants 1 Otawara, Soaring City 4 Flooded Strand 2 Counterspell 1 Monumental Henge 2 Arid Mesa 2 Hallowed Fountain 1 Scalding Tarn 4 Orim's Chant 2 Force of Negation 2 Consult the Star Charts 2 Island 1 Isochron Scepter 4 Teferi, Time Raveler 2 Spell Snare 1 Polluted Delta 1 Mystic Gate 4 Narset, Parter of Veils 1 Stern Scolding 2 Meticulous Archive 1 Subtlety 2 Day's Undoing 3 Prismatic Ending 1 Stock Up 4 Solitude 2 Lrien Revealed 2 Plains 2 Supreme Verdict 1 Steam Vents 1 Geier Reach Sanitarium 2 Surgical Extraction 1 Disruptor Flute 3 Mystical Dispute 4 Consign to Memory 1 Temporary Lockdown 1 Celestial Purge 2 Fire Magic 1 Kaheera, the Orphanguard Kaheera, the Orphanguard Justin Schabel Justin Schabel Meet Justin Schabel, the first player to clinch Top 8 at Pro Tour Edge of Eternities

You can currently get a mythic rare borderless Vivi Ornitier card for less than $300, though there are some better (and cheaper) legendary creatures to build a commander deck around
It's not exactly easily accessible given its playability in Modern and other Eternal formats
In The First Chapter, there are two Enchanted cards in each of the six ink colours, with four Rare cards, two Super Rare cards and three Legendary cards also appearing in an Enchanted form