Crush Dissent — ruling 1

Some spells and abilities that amass Zombies may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't amass Zombies.

Crush Dissent — ruling 2

Amass abilities are now written as "amass [subtype] N." Previous cards with amass have received errata to say "amass Zombies N."

Crush Dissent — ruling 3

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.

Crush Dissent — ruling 4

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.

Crush Dissent — ruling 5

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.

Crush Dissent — ruling 6

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.

Crush Dissent — ruling 7

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.

Crush Dissent — ruling 8

You amass 2 even if the controller of the spell pays {2}.

Crush Dissent : règles, fonctionnement et interactions (MTG)

Crush Dissent is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Counter target spell unless its controller pays . Amass Zombies 2. (Put two +1/+1 counters on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)

How it works : Crush Dissent

Original English text — Wizards of the Coast / Scryfall

#1June 16, 2023· Wizards of the Coast
Some spells and abilities that amass Zombies may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't amass Zombies.
No other card is named in this ruling.
#2June 16, 2023· Wizards of the Coast
Amass abilities are now written as "amass [subtype] N." Previous cards with amass have received errata to say "amass Zombies N."
No other card is named in this ruling.
#3June 16, 2023· Wizards of the Coast
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.
Card named in this ruling
Zombie Army
#4June 16, 2023· Wizards of the Coast
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.
Card named in this ruling
Zombie Army
#5June 16, 2023· Wizards of the Coast
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.
No other card is named in this ruling.
#6June 16, 2023· Wizards of the Coast
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.
Card named in this ruling
Zombie Army
#7June 16, 2023· Wizards of the Coast
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.
No other card is named in this ruling.
#8May 3, 2019· Wizards of the Coast
You amass 2 even if the controller of the spell pays .
No other card is named in this ruling.