Have you thought about the power of Progenitor Mimic though?

Phage the Untouchable is pretty untouchable

Before I respond to the request to put Progenitor Mimic in my deck, should it be banned?

It is so good and it will cause the format to heavily invest in GU so I think it should. Yeah Phage the Untouchable is pretty op with those Invisible Stalker's too. I think phage should be banned but the stalkers are fine. Vraska the Unseen's final ability is powerful here, it just would never go off.

Oh, phage is already banned okay. Also Celestial Mantle and Serra Ascendant. Those are good things to ban.

So far I can say that cool stuff for this format is Spawnwrithe, Invisible Stalker, Thrun, the Last Troll, Go for the Throat, Mind Control, Phyrexian Ingester, Hero's Downfall, Rapid Hybridization, and Victim of Night

None of which should be banned.

Thanks for all the comments. I have taken all of them into consideration. You are all helping me to shape this new format. Thank you.

Ok I finished mine. And I also made a complete list of the bans.

From looking at HostOfSmallPox's new deck, I just realized that Sorin Markov should probably be banned. It's -3 affect is CRAZY,and can be activated quickly. Should it be banned?

So bassicly... Two creatures you control gain banding. I know its more complicated than that, but still.

kind of, yeah

Except it is a lot more complicated and cooler than that, and adds a whole new strategy to the game

Keep working on it, it looks good so far +1

I might have missed it, but can you "buddy" creatures at instant speed, or only during your turn? Also needs a new name, maybe "battle bros"?

You can only team up creatures on the first main phase.

Oh, hafnera, you can make the rules easier to read by putting some >br< tags in the description. (switch the signs though) It Breaks the lines and starts a new one. So that you don't have two different rules on one line.

The 22 mountains in this deck make zero sense

o, thanks HostOfSmallPox, and, yes, obviously I have not worked out the land situation yet. Thats part of the reason this is a prototype.

My brain hasn't hurt quite so much since I tried to figure out banding when I was a kid. That said this seems like much more fun. Cool idea. I wonder how it will work out in practice? Have you tried the format with anyone? +1 anyhow.