Time Walk Five mana for Time Warp is a lot, but Time Walk lets you take an extra turn for a mere 2 mana
The deck turns this potential negative into a positive by finding cards that want to be in the graveyard and bringing those cards onto the battlefield
Become an Expert Lastly, if you're really serious about getting good at limited, there are premium courses available with Hall of Fame players that you can take
While there may be enough easter eggs and references to keep diehard fans happy (or annoyed because their faves haven't been included), for the most part, it can all be ignored
Becoming a 4/4 for four mana is more than fair, particularly when said 4/4 can also munch key cards in your opponents graveyard each time it swings in
It being four mana is crucial for allowing the deck to function, but its also the sweet spot on the curve where people tend to fire off removal