So you could Dack's Duplicate your own Mulldrifter, draw two cards, swing for three damage over defenses, and now have a 3/3 flyer out that can get bigger and bigger over time
I really love the Alchemy since it plays into a different mechanical space that token support like Clues or Treasures
We slow our opponents down even more with Wildfire and Destructive Force, and eventually lock down the game by resolving one of our Obliterate cards
Tying in mass card draw really breaks her open, and then she's in blue to protect her and your life gain stuff with counters like Counterspell or Negate and if you tap out to draw, Force of Will and Fierce Guardianship might want to say a word or two for those who think you are open
If the Reality Shift results in a face-down Tangled Florahedron, you have the option to pay to get a face up Tangled Florahedron, but you will not have the option to play Haven of the Harvest