You can play a single copy of Mental Misstep in Vintage, or in Highlander formats (including Commander!), but otherwise, youll have to read about this menace in the history books
Slowkings Pokemon Power forces your opponent to flip a coin every time they play a trainer card, and if tails it does nothing
[1] You can send 1 "Predap" card from your Deck to the GY
Your booster choice also determines the first card you receive from Wonder Pick , so it's worth taking that into account when making your decision too
I can think of EDH decks that would be happy with either mode but I cant think of a deck that can really benefit from both modes without being built around it
It includes Black Lotus, the five moxen (like Mox Sapphire), Ancestral Recall, Time Walk, and Timetwister