Walking that tightrope of payoffs and enablers is a fun challenge, so lets see how many upkeeps we can get
1 Craterhoof Behemoth You'll never hear it coming
You can spend three to mill four and then return two dorks or lands to your hand from them
Shuffling this way is not very effective, because each pile shuffle takes many times as long as a riffle shuffle while acomplishing about the same amount
It doesn't copy whether the 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
Cheap draw 7 spells are at their finest in affinity which can jump right back into a game with one