Descend upon the Sinful — ruling 1

If you have three non-sorcery card types among cards in your graveyard at the time Descend upon the Sinful resolves, you won't get an Angel token. Descend upon the Sinful isn't put into your graveyard until after it's finished resolving.

Descend upon the Sinful — ruling 2

If one of those creatures was enchanted, its Aura won't be put into a player's graveyard until after Descend upon the Sinful has finished resolving. If the controller of Descend upon the Sinful owned the Aura, it won't be in the graveyard in time to be counted for the delirium ability.

Descend upon the Sinful — ruling 3

The card types in Magic are artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery. Supertypes (such as legendary and basic) and subtypes (such as Human and Equipment) are not counted.

Descend upon the Sinful — ruling 4

The number of card types matters, not the number of cards. For example, Wicker Witch (an artifact creature) along with Catalog (an instant) and Chaplain's Blessing (a sorcery) will enable delirium.

Descend upon the Sinful — ruling 5

Because you consider only the characteristics of a double-faced card's front face while it's not on the battlefield, the types of its back face won't be counted for delirium.

Descend upon the Sinful — ruling 6

In some rare cases, you can have a token or a copy of a spell in your graveyard at the moment that an object's delirium ability counts the card types among cards in your graveyard, before that token or copy ceases to exist. Because tokens and copies of spells are not cards, even if they are copies of cards, their types will never be counted.

Descend upon the Sinful : règles, fonctionnement et interactions (MTG)

Descend upon the Sinful 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

Exile all creatures. Delirium — Create a 4/4 white Angel creature token with flying if there are four or more card types among cards in your graveyard.

How it works : Descend upon the Sinful

Original English text — Wizards of the Coast / Scryfall

#1April 8, 2016· Wizards of the Coast
If you have three non-sorcery card types among cards in your graveyard at the time Descend upon the Sinful resolves, you won't get an Angel token. Descend upon the Sinful isn't put into your graveyard until after it's finished resolving.
Card named in this ruling
Angel
#2April 8, 2016· Wizards of the Coast
If one of those creatures was enchanted, its Aura won't be put into a player's graveyard until after Descend upon the Sinful has finished resolving. If the controller of Descend upon the Sinful owned the Aura, it won't be in the graveyard in time to be counted for the delirium ability.
No other card is named in this ruling.
#3April 8, 2016· Wizards of the Coast
The card types in Magic are artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery. Supertypes (such as legendary and basic) and subtypes (such as Human and Equipment) are not counted.
No other card is named in this ruling.
#4April 8, 2016· Wizards of the Coast
The number of card types matters, not the number of cards. For example, Wicker Witch (an artifact creature) along with Catalog (an instant) and Chaplain's Blessing (a sorcery) will enable delirium.
No other card is named in this ruling.
#5April 8, 2016· Wizards of the Coast
Because you consider only the characteristics of a double-faced card's front face while it's not on the battlefield, the types of its back face won't be counted for delirium.
No other card is named in this ruling.
#6April 8, 2016· Wizards of the Coast
In some rare cases, you can have a token or a copy of a spell in your graveyard at the moment that an object's delirium ability counts the card types among cards in your graveyard, before that token or copy ceases to exist. Because tokens and copies of spells are not cards, even if they are copies of cards, their types will never be counted.
No other card is named in this ruling.