In the rare case that you control multiple Army creatures (perhaps because you played a creature with changeling) while you amass Zombies, you choose which of your Army creatures to put the +1/+1 counters on. If that creature isn't a Zombie, it becomes a Zombie in addition to its other types.
If you don't control an Army, the Zombie Army token you create enters the battlefield as a 0/0 creature before receiving counters. Any abilities that trigger when a creature with a certain power enters the battlefield, such as that of Mentor of the Meek, will see the token enter as a 0/0 creature before it gets +1/+1 counters.
Some cards refer to the "amassed Army." That means the Army creature you chose to receive counters, even if no counters were placed on it for some reason.
Last observed on Scryfall 2 months ago at $0.78. Over the trailing 90 days the price moved between $0.02 and $0.79 across 57 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 3 catalogued treatments from WAR — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
Card #45 of *War of the Spark*, the set that shipped alongside the May 2019 War of the Spark release.
Card type: Instant, color identity blue, printed at rare. Rares occupy the bottom-of-pack rare slot in standard boosters. Mana cost: {4}{U}{U} (6 converted). Keyword abilities: Amass.
Legal across the major constructed formats — Modern, Legacy, Vintage, and Commander — plus Standard rotation play.
EDHrec ranks this card #8,310 in Commander, putting it in the niche-pick tier of the format's playable pool.
Illustrated by Noah Bradley. Rarix catalogs 405 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Noah Bradley
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
To amass Zombies N, if you don't control an Army creature, create a 0/0 black Zombie Army creature token. Then you choose an Army creature you control and put N +1/+1 counters on it. If that Army isn't already a Zombie, it becomes a Zombie in addition to its other types.
Amass Orcs works the same way, except you create a 0/0 black Orc Army creature token if you don't control an Army. If the Army creature you chose isn't already an Orc, it becomes an Orc in addition to its other types. By combining cards with amass Orcs and amass Zombies, you can end up with an Orc Zombie Army.
Amass abilities are now written as "amass [subtype] N." Previous cards with amass have received errata to say "amass Zombies N."
You draw two cards and amass X all while Commence the Endgame is resolving. Nothing can happen between the two, and no player may choose to take actions.
A spell or ability that counters spells can still target Commence the Endgame. When that spell or ability resolves, Commence the Endgame won't be countered, but any additional effects of that spell or ability will still happen.
