With a Dark Ritual, you can cheat out a three mana Commander on T1
This land can transmute for anything with a mana value of zero
4 Riders of Rohan The Lord Of The Rings There's a good argument to make that Universes Beyond Commander precons are a great way to learn how to play the format if you have a vested interest in the IP the deck is based around
Wizards of the Coast needed to make Aetherspark a big deal in card form as well, and it looks like they delivered: There it is in all its glory: a Legendary Artifact Planeswalker - Equipment, the first of its kind
Now consider that Visions put phasing in close proximity with some of the all-time-best ETB triggers, and that the average players understanding of the rules (and to be fair, the rules themselves) were much more loose than in our present era
Turn your Llanowar Elves into Deathrite Shaman into The Mimeoplasm, or use it to get rid of your own Collector Ouphe and find Ruric Thar, The Unbowed instead