Enter instant speed answers
Timetwister has appeared as a one-of in basically every Vintage archetype at some point or another, even if it has also been famously cut from basically every archetype at one point or another (at least temporarily)
There are lots of other lands I could mention, like Brian Snoddy's take on Urza's Power Plant, John Avon's Lantern-lit Graveyard and Submerged Boneyard by Chris Childs, and many others
If the Reserved List was a mistake, the mistake wasn't that it was created
Strictly speaking, he might be better as part of a Green-Black build as part of the deck itself, but well go down the Fynn rabbit hole anyway
This allows you to sink loads of mana into it, and you get one Angel for every two mana you spend basically