Rise of the Dread Marn — ruling 1

The number of nontoken creatures that died that turn is counted as Rise of the Dread Marn is resolving. In other words, nontoken creatures that die in response to Rise of the Dread Marn will count.

Rise of the Dread Marn — ruling 2

It doesn’t matter if the cards that represented those creatures are still in the graveyard as Rise of the Dread Marn resolves. They’ll still count as long as they died that turn.

Rise of the Dread Marn — ruling 3

Because exiling a card with foretell from your hand is a special action, you can do so any time you have priority during your turn, including in response to spells and abilities. Once you announce you’re taking the action, no other player can respond by trying to remove the card from your hand.

Rise of the Dread Marn — ruling 4

Casting a foretold card from exile follows the timing rules for that card. If you foretell an instant card, you can cast it as soon as the next player’s turn. In most cases, if you foretell a card that isn’t an instant (or doesn’t have flash), you’ll have to wait until your next turn to cast it.

Rise of the Dread Marn — ruling 5

If you’re casting a foretold card from exile for its foretell cost, you can’t choose to cast it for any other alternative costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, those must be paid to cast the spell.

Rise of the Dread Marn : règles, fonctionnement et interactions (MTG)

Rise of the Dread Marn 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

Create X 2/2 black Zombie Berserker creature tokens, where X is the number of nontoken creatures that died this turn. Foretell (During your turn, you may pay and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

How it works : Rise of the Dread Marn

Original English text — Wizards of the Coast / Scryfall

#1February 5, 2021· Wizards of the Coast
The number of nontoken creatures that died that turn is counted as Rise of the Dread Marn is resolving. In other words, nontoken creatures that die in response to Rise of the Dread Marn will count.
No other card is named in this ruling.
#2February 5, 2021· Wizards of the Coast
It doesn’t matter if the cards that represented those creatures are still in the graveyard as Rise of the Dread Marn resolves. They’ll still count as long as they died that turn.
No other card is named in this ruling.
#3February 5, 2021· Wizards of the Coast
Because exiling a card with foretell from your hand is a special action, you can do so any time you have priority during your turn, including in response to spells and abilities. Once you announce you’re taking the action, no other player can respond by trying to remove the card from your hand.
Card named in this ruling
Foretell
#4February 5, 2021· Wizards of the Coast
Casting a foretold card from exile follows the timing rules for that card. If you foretell an instant card, you can cast it as soon as the next player’s turn. In most cases, if you foretell a card that isn’t an instant (or doesn’t have flash), you’ll have to wait until your next turn to cast it.
Card named in this ruling
Foretell
#5February 5, 2021· Wizards of the Coast
If you’re casting a foretold card from exile for its foretell cost, you can’t choose to cast it for any other alternative costs. You can, however, pay additional costs, such as kicker costs. If the card has any mandatory additional costs, those must be paid to cast the spell.
Card named in this ruling
Foretell