The Phyrexian nightmare begins.

Dominaria faces its biggest threat -- an invasion by its greatest enemy, an attack planned for eons by merciless foes. No one is exempt from their terror. No land is safe from their onslaught. In the shadow of the Phyrexian horde, Dominaria has but one hope -- the Weatherlight and her crew. The time has come to defend hearth and home from invasion.