Amass

Amass is a keyword action that builds up one creature instead of many. When a card tells you to amass, you put that many +1/+1 counters on an Army you control, and that Army also becomes the creature type named in the ability — Amass Orcs, Amass Goblins, and so on. If you don't control an Army yet, you first create a 0/0 black creature token of that type, then put the counters on it, so it arrives as a real body rather than something that dies on the spot.

The payoff is a creature that grows tall rather than wide: every amass adds to the same Army, so counters pile up on a single threat that keeps the type it gained. Because a 0/0 Army needs counters just to survive, each amass gives you both a creature and a bonus in one step.

• 71 unique cards with amass appear in the catalog, spanning 174 printings across 16 sets.
• The oldest printing listed here dates to 2019 (War of the Spark), and the newest set represented is Reality Fracture Commander.
• These cards sit in blue, black, and red. Creatures dominate at 36 cards, followed by 19 sorceries, 7 enchantments, and 6 instants; the remainder is one artifact, one land, and one planeswalker.
• Amass shows up at every rarity in the catalog: common, uncommon, rare, and mythic.
• The most-reprinted names include Sauron, the Dark Lord; Dreadhorde Invasion; Barad-dûr; Orcish Bowmasters; Fall of Cair Andros; Shagrat, Loot Bearer; Angrath, Captain of Chaos; Commence the Endgame; Enter the God-Eternals; Eternal Skylord; Gleaming Overseer; and Sauron, Lord of the Rings.