Domain Zoo is a multicolor aggro deck fueled by Ragavan, Nimble Pilferer and Territorial Kavu, backed by Fatal Push and Leyline Binding. Sanctifier en-Vec's protection from red and black lets it block Ragavan and the red-and-green Territorial Kavu cleanly—since Kavu is red—while dodging Fatal Push entirely. Lavinia, Azorius Renegade restricts their noncreature spells to a mana value at or below their land count, stopping high-mana-value removal like Leyline Binding (whose mana value remains 6 despite domain cost reduction) unless they control at least six lands. Cut Starfield Shepherd and a Witch Enchanter, which are too slow to keep pace with this aggressive shell.