Siege of the Ancients

Siege of the Ancients is an Abzan (white-black-green) defender/toughness-matters Commander deck built around Walls and high-toughness creatures. Its main plan is to ramp with defenders like Axebane Guardian and Overgrown Battlement, stabilize the board with life gain and durable blockers, then turn that toughness into offense with cards like Assault Formation, Doran, Wakestone Gargoyle, Walking Bulwark, and Bedrock Tortoise.

The deck wins by swinging with creatures that normally only defend, often using pump effects like Tower Defense or evasion tools like Behind the Scenes and Sidar Kondo of Jamuraa to push damage through. It also has secondary synergies with life gain (Nyx-Fleece Ram, Rhox Faithmender, Tree of Redemption) and defender payoffs/token value like Wingmantle Chaplain and Blight Pile, giving it a grindy, resilient game plan.