The card, with its gold lettering printed in the Black Speech of Sauron one of Tolkien's fictional languages could fetch millions of dollars
Furthermore, many of those are very niche cases (save for one of Urza's Destiny's most valuable cards, Yavimaya Hollow)
This deck was already a fringe deck in Modern, but Oath of Nissa might be exactly what it needed to propel itself firmly into the sphere of competitive Modern decks, especially since this is another deck that can use the recent big mana offerings well and might want something like Ulamog, the Ceaseless Hunger or even World Breaker, both of which, of course, Oath of Nissa can help find when you need it, giving you a different sort of flexibility, offering a card that does what others couldnt
The main line of play is simple but powerful: develop ink early with Sapphire, then drop mid-to-late-game glimmers that generate Lore more efficiently
Vivi is an extremely scary Commander to boot
Theres a list of these probabilities calculated for round 3 above if you want to check my math/check your math if you have enough faith in me