So I really liked the idea of the Archenemy format but so far all the archenemy decks are Bolas/Dragon themed. I decided to attempt my own archenemy deck with Nahiri as the villain (when she was releasing Emrakul upon Innistrad).
The deck is intended to be played against 3 other Modern decks in a 3v1 setup. The general 'gimmick' of the deck is to cheat out Emrakul with Through the Breach or just slowly ramp to her with hedrons. Ideally, the schemes will cheat her out for you and you can focus on control. The deck runs a lot of board wipes as they are very valuable 1v3. Single Combat is particularly interesting as it doesn't allow any of your 3 opponents to cast creature/planeswalker spells until your next turn (on top of a partial boardwipe). It's also conveniently Nahiri themed.
Summary of the Archenemy format from the MTG Wiki:
"One player, designated the archenemy, plays against a team of opponents. To even the odds, the archenemy starts the game with 40 life, always takes the first turn, and keeps a second deck of oversized and powerful scheme cards in the command zone. The opposing team takes a simultaneous turn, as in Two-Headed Giant, but each player on that team has a separate life total of 20. Any teammates can block an attacker declared by the archenemy, regardless of which player is being attacked.
The archenemy wins if all other players are eliminated from the game. All of the opposing players, even those who have already left the game, win if the archenemy loses.
At the beginning of each of the archenemy's precombat main phases, they draw the top card of their scheme deck, leaving it face up in the command zone, and "set it [in] motion". Schemes, like emblems, are not permanents. Most schemes have a triggered ability which triggers immediately upon being set in motion. However, schemes with the Ongoing supertype have an additional static ability, as well as triggered abilities which cause them to be "abandoned". Whenever a scheme is "done" (resolved or abandoned), it is placed on the bottom of the scheme deck. The scheme deck is not shuffled after the start of the game."
