Outside of Mono-White Aggro, Origin of Spider-Man could see play in Standard Yuna, Hope of Spira decks, as well as in counters-matters decks if the Mono-Green shell has a decent reason to go into Selesnya
Throw in a handful of dual lands and some playable utility lands like Bojuka Bog and Geier Reach Sanitarium, and counting only rare lands and other lands worth over $1, and the average value of the land slot in Commander 2019 has roughly doubled since last year, with the Sultai Morph deck clearly leading the way thanks to the Battle for Zendikar dual lands and the Jeskai Flashback deck lagging behind with a surprisingly lackluster mana base (especially considering it's a three-color deck)
For formats with fast aggro decks, it might be better to play a Branchloft Pathway on turn one to make your Noble Hierarch, or as Boulderloft Pathway sometimes setting up your Collected Company
Common Mistakes We See (And How to Avoid Them) After printing thousands of prototype decks, here are the most frequent issues: 1
What an interesting burn spell