Better yet, due to how Replicate works (the copies go on the stack individually and resolve individually), counterspells are useless against it
17/64 Entei (17)
It does not hit Enters-the-Battlefield (ETB) abilities, right
It takes some work to make Muldrotha work, but if you've got good mana, are good at milling yourself, and you have lots of permanents, it's probably going to be the strongest card in your deck
Some "features" of the future are easy to avoid if we so choose (I'm looking at you, self-checkouts) but others are going to be far stickier to deal with
However, despite the Power tag, I would not put Timetwister in the broken bucket, and even the venerable Time Walk is at least debatable