Broodrage Mycoid — ruling 1

Some cards refer to a player who has "descended this turn." This means that a permanent card has been put into that player's graveyard from anywhere this turn.

Broodrage Mycoid — ruling 2

Some cards refer to the number of times a player descended this turn. Those cards care about the number of permanent cards put into that player's graveyard from anywhere this turn.

Broodrage Mycoid — ruling 3

In either case, it doesn't matter if those cards are still in that player's graveyard.

Broodrage Mycoid — ruling 4

A permanent card is an artifact, battle, creature, enchantment, land, or planeswalker card. Tokens are not cards, and while tokens are put into the graveyard before ceasing to exist, that action doesn't count as a player having descended.

Broodrage Mycoid — ruling 5

Multiple cards have abilities that begin with "At the beginning of your end step, if you descended this turn." These cards don't need to have been under your control at the time you descended. For example, if a permanent card is put into your graveyard during your first main phase and you cast Stalactite Stalker your second main phase, its ability will trigger at the beginning of your end step.

Broodrage Mycoid — ruling 6

Abilities that begin with "At the beginning of your end step, if you descended this turn" will trigger only once during your end step, no matter how many times you descended this turn. However, if you haven't descended this turn as your end step begins, the ability won't trigger at all. It's not possible to put a permanent card into your graveyard during the end step in time to have the ability trigger.

Broodrage Mycoid : règles, fonctionnement et interactions (MTG)

Broodrage Mycoid 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

At the beginning of your end step, if you descended this turn, create a 1/1 black Fungus creature token with "This token can't block." (You descended if a permanent card was put into your graveyard from anywhere.)

How it works : Broodrage Mycoid

Original English text — Wizards of the Coast / Scryfall

#1November 10, 2023· Wizards of the Coast
Some cards refer to a player who has "descended this turn." This means that a permanent card has been put into that player's graveyard from anywhere this turn.
No other card is named in this ruling.
#2November 10, 2023· Wizards of the Coast
Some cards refer to the number of times a player descended this turn. Those cards care about the number of permanent cards put into that player's graveyard from anywhere this turn.
No other card is named in this ruling.
#3November 10, 2023· Wizards of the Coast
In either case, it doesn't matter if those cards are still in that player's graveyard.
No other card is named in this ruling.
#4November 10, 2023· Wizards of the Coast
A permanent card is an artifact, battle, creature, enchantment, land, or planeswalker card. Tokens are not cards, and while tokens are put into the graveyard before ceasing to exist, that action doesn't count as a player having descended.
No other card is named in this ruling.
#5November 10, 2023· Wizards of the Coast
Multiple cards have abilities that begin with "At the beginning of your end step, if you descended this turn." These cards don't need to have been under your control at the time you descended. For example, if a permanent card is put into your graveyard during your first main phase and you cast Stalactite Stalker your second main phase, its ability will trigger at the beginning of your end step.
No other card is named in this ruling.
#6November 10, 2023· Wizards of the Coast
Abilities that begin with "At the beginning of your end step, if you descended this turn" will trigger only once during your end step, no matter how many times you descended this turn. However, if you haven't descended this turn as your end step begins, the ability won't trigger at all. It's not possible to put a permanent card into your graveyard during the end step in time to have the ability trigger.
No other card is named in this ruling.