marchesa, robo cop V3 (EDH / Commander)

This is Robocop Marchesa.

A basic HOW TO PLAY by plushpenguin

The first turns of your game should be setting up your engine. Play cheap creatures or manarocks and then drop Marchesa. You can make your first few attacks about getting the dethrone triggers, especially if you have sac outlets to get a bit more value.

The real fun begins if you can set up what I call "the modular engine". This is where you have or tutor up Arcbound Ravager OR a modular creature + a sac outlet to go with an artifact creature of your choice, preferably one that generates value.

Finally, you'll need to acquire one of the win conditions to truly close out the game in a timely fashion. It can happen from old-fashioned beatdown but it is more likely one of the following options-

Marionette Master - 4 life per artifact allows very rapid focus fire on an opponent, and is also extra durable to boot. If you can increase its power via an attack, a clone, or say... a Cranial Plating, everyone will melt in very short order. Best wincon and reminiscent of old affinity kills.

Time Sieve: With the modular engine, you realistically sacrifice only two artifacts while gaining value and somewhat acting as your sacrifice outlet with some limitations. With enough resources it goes infinite, but even if it doesn't it provides so much time that beatdown becomes a far more viable option, especially as you GAIN value through each turn. The fact that it costs 2 mana is riduculous. Pair with Genesis Chamber for quick concessions.

Inkmoth Nexus - This land is legitimately scary with the modular engine, Cranial Plating, or just plain attacking with it enough times. Usually you'll want a plating to go with this for maximum effect. This is a Modern Affinity kill condition

Purphoros, God of the Forge: It goes with your engine cards to pile on the damage quite quickly. It is efficient, but its weakness is not being able to focus down threatening players and therefore it is a weaker option than the others on this list. Still potent.