Toll of the Invasion
Sorcery
Amass Zombies 1. (Put a +1/+1 counter 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.)
Legal in
Pioneer, Modern, Legacy, Vintage, Commander, Pauper, Brawl, Historic
Rulings (8)
You still amass 1 even if that player has no nonland cards to discard.
2019-05-03
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.
2023-06-16
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.
2023-06-16
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.
2023-06-16