This theme was very important to the design as it helped us created cards that could swing multiple directions, that is they had value to different parts of the set
Whenever you gain life, each opponent loses 1 life
Toph, The First Metalbender The "flavor" of Toph is off the charts with this card, and she can animate any of your nontoken artifacts into 2/2 creatures with haste, meaning it can attack immediately after being "awakened." Best of all, if the artifact is destroyed, it comes back tapped and can resume being an ordinary artifact on your next turn
Youll want a Catalyst Stone to make your flashback costs cheaper, and then youll want Pyromancers Goggles to doubly copy all the red ones, which you might get to cast off the top of your library since youre still using Elsha of the Infinite, plus adding Melek, Izzet Paragon
Also, note that there are tons of great card-draw in White that's not here like Sage's Reverie, Stone Haven Outfitter, Lady of Laughter and the legendary Faramir, Field Commander that have various triggers either ETB or over time when something happens.
Not Ranked: Keruga, the Macrosage I chose to leave Keruga, the Macrosage off the list since most people opt to use this as a companion rather than a Simic commander