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.
Most triggered delirium abilities use an intervening "if" clause. There must be four or more card types among cards in your graveyard in order for these abilities to trigger, otherwise they never trigger at all. There's no way to have the ability trigger if there aren't enough card types, even if you intend to raise that number in response to the triggered ability. The number of card types is checked again as the trigger resolves, and if it has become too low somehow, the ability does nothing. If which card types are in your graveyard changes but the quantity of card types stays the same (or increases), then the delirium triggered ability will still resolve.
Last observed on Scryfall 2 months ago at $0.05. Over the trailing 90 days the price moved between $0.03 and $0.05 across 44 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 3 catalogued treatments from SOI — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
Card #140 of *Shadows over Innistrad*, the set that shipped alongside the April 2016 Shadows over Innistrad release.
Card type: Creature — Human Rogue, color identity black, printed at uncommon. Uncommons fill the middle-tier slots in a standard booster configuration. Mana cost: {2}{B} (3 converted). Keyword abilities: Delirium.
Legal in Pioneer, Modern, Legacy, Vintage, and Commander.
EDHrec ranks this card #24,383 in Commander, putting it in the fringe-play tier of the format's playable pool.
Illustrated by Bud Cook. Rarix catalogs 78 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Bud Cook
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
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.
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.
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.
