In order to accomplish this, I plan to make a tier list of cards in every major set before release, as well as a grading of how I did on the previous tier list
More often than not, youll be creating the Mishras Warform 4/4 Construct token and want to keep it on the board so you have two copies of the same artifact, or so you can sacrifice it with one of the various sac outlets to generate a bigger board advantage than the copied artifact provides
Most TDFCs have an ability that tells you how the permanent transforms to its other face
Plus, you can flip it into a Blightsteel Colossus for just a little more mana and life
If you bring a creature to the battlefield during the opponent's turn (for example, Teferi Mage of Zhalfir), and the cunning opponent phase it out, Teferi will phase in at the beginning of your untap step, and you can attack with it during the same turn