While in the current era of Mentors, Workshops, and Paradoxes this isnt the case, there was a long period of time where games revolved around singletons
The few exceptions to this include when you need a Life from the Loam to get land cards back from your graveyard, or occasionally when you need to cast a Darkblast to deal with an important creature
Id recommend adding a Thassas Oracle or Jace, Wielder of Mysteries to make sure you dont draw yourself into a corner
Everyone having Sol Ring really makes Thada Adel much more playable than she otherwise would be
There are 77 of them available as part of the Final Fantasy Universes Beyond run with MTG, and we already know that someone was lucky enough to pull one - and then resell it for around $40,000
Once transformed, Esper Terra can copy Overlord of the Balemurk for additional value and further combo potential