Invade the City

Amass rewarded spell-heavy decks with a scaling threat, and this is the payoff card that leans hardest into that structure. Where most Amass sources add a fixed number of counters, this one sets X to the number of instant and sorcery cards in your graveyard, tying the size of your Army to how much you have already cast. That single design choice converts a spellslinger's exhaust pile into a board presence, giving a deck that would otherwise field almost no creatures a way to close a game with the resources it has already spent. The graveyard-counting clause does all the restraining work here: it scales into a genuinely large body off a full yard, and it stays honest early because it does literally nothing off an empty one. Cast this before you have cast anything else and X is zero, which means Amass 0: you create a 0/0 Zombie Army that dies to state-based actions before you can even use it. The card refuses to give you a body until you have earned one. Because Amass stacks its counters onto an existing Army rather than spawning a fresh token each time, a follow-up Amass source compounds the same creature instead of splitting your board, so a build that keeps feeding one Army grows it faster than the raw spell count suggests. This is a card that wants a game that has already happened, paying a control or tempo shell for the graveyard it was always going to build.