To win you need said creature to have 20+ power, and that can be a lot harder to manage
Rules themselves can't be copyrighted, in the sense that the "rule" for flanking is "when two units are involved in combat, and the first has flanking, and the second does not have flanking, the second unit experiences a particular disadvantage" But calling it "flanking" is copyrightable, and for Forge to call it "flanking" is to infringe
In addition to these new commanders, Wizards of the Coast has also introduced a new mechanic called "Partner" in Commander 2016, which allows players the ability to have two commanders if both have the "Partner" mechanic, as seen below with two cards from the "Invent Superiority" deck
Windborn Muse is a budget card that makes it more difficult for an opponent to attack you and take the monarch from you, while cards like Kardur, Doomscourge push opponents to attack each other rather than you
I guess they weren't interested because I never heard back
A total of eight of these are coming to Pauper, though I only think a few are likely to be playable
