Reanimator decks are looking to get a powerful creature into the graveyard quickly through discard or Entomb effects, then cast a spell to return it to the battlefield at a steep mana discount
While this is definitely underwhelming, it technically means you get a 6/6 vehicle for four mana
Elves are a mechanic thats as fun to play as it is simple
It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and/or Equipment attached to it, or any non-copy effects that changed its power, toughness, types, color, and so on
Steely Resolve is a great piece of green protection that insulates your dragons from removal or other activated abilities
There are many, many more possible commanders that will work well with cycling