mtg edgar markov commander deck Elite Vampire - - Mardu Black Red White - EDH cEDH - 100 Card - Custom Deck With dimensions of approximately 24 in Magic: The Gathering 2017 Commander

That might lead to some slipperiness with card ratings but until we get mom tribal I think this is really the most interesting option

At the beginning of your end step, if you control four or more creatures, transform Growing Rites of Itlimoc

"Which phase of design is impacted most in dealing with the back-and-forth in communicating with Universes Beyond IP holders?"

If the copied creature is copying something else, then the token enters the battlefield as whatever that creature copied, with the exceptions noted above

While not the best effect on rate, this works in a pinch when you need to answer a troublesome creature or planeswalker

tokens when they defeat certain challenges, which grant access to the Jump In