Theyre also great when you only need a handful of high-impact staples (instead of printing an entire deck), so you can upgrade a list fast without a full print-on-demand workflow
The problem we ran into during playtests was players didn't understand why those three things went together
Teferi, Time Raveler Teferi, Time Raveler might be the most obnoxious planeswalker ever printed, which is an impressive achievement since it goes up against whoppers like Oko, Thief of Crowns and Narset, Parter of Veils
If you build around a good mutating commander that interacts well with all parts of your deck, then youre set
Before you start to riot, this is also why Deathrite Shaman does not see an appearance, even though there is a real argument to its appearance on this list
A reprint makes it much more accessible for the many Magic: The Gathering decks that would benefit from such a powerful card