Seeing how the metagame has played out, and how Wizards goes about banning cards, Teferi, Time Raveler would pretty much never see a ban since hes just not a win condition on his own
Necrologia This fixed Necropotence is still pretty useful
Get this out with mana to spare and Animar's cost reduction ability will soon get you a big board, assuming youve built your deck correctly
Similarly, Raggadragga, Goreguts Boss is nice with mana dorks like Llanowar Elves, but it wont work for Elvish Visionary because nothing on the card specifically says elves
Voyage Home: nice cheap draw Amonkhet Raceway: good Max Speed payoff Aetherjacket: Buzz buzz
Then if it has three or more +1/+1 counters on it, transform it