Throughout recent years, Wizards of the Coast has steadily been pushing the bounds of collectibility in MTG
One artist was given four Planeswalkers to recreate in a scene that rivals the games intent itself, as each player has a deck corresponding to each Planeswalker
Those foils can be of any rarity, so its possible to get three or even FOUR rare or mythic rare cards in a single pack
The Tarkir: Dragonstorm Commander cards are simply just not ready on Arena at the moment
The Soul Stones harness ability is a bit overblown given the massive set-up cost, but it's all gravy on a massive upgrade to Charcoal Diamond, and an indication that the other colors will be getting some improved mana rocks soon enough, probably a few as early as Marvel Super Heroes next year
I dont think this is too much of a hoop to jump through if you plan on using the land anyway especially with White centric untap effects or even just vigilant creatures to keep some pressure on