In Neil Gaiman's The Books of Magic series, the main character visits the end of the universe and discovers that the last living entities are psychic after-echoes of people throughout history who have merged into the major arcana, with the explanation that the tarot cards were inspired by subconscious character archetypes that all people come from and eventually return to.
Earlier on in the series, he gets a reading from Madame Xanadu, and the four cards drawn correspond to the four members of the Trenchcoat Brigade that are acting as his guides.
This crosses into Hellblazer comic when a dead wizard sends him a message showing the the line of people who have held the position of the "Laughing Magician" that he's inherited. He hasn't- it's his unborn twin brother who's the Laughing Magician, who is using the power that comes with it to screw with John's life making him commit mental suicide allowing the twin to take over; it's that kind of comic. Amongst these are Lady Constantine, other figures from the Constantine family and a figure of Constantine in jester clothes who quotes from the conversation that the soul entity that Timothy confused with John (because he looked exactly like Constantine in jester clothing) in The Books of Magic suggesting they are the same person. Though the entity isn't named from the dress it's obvious it's meant to represent the Fool and it doesn't take much Wild Mass Guessing to suggest that the souls from Laughing Magician line join to become part of (or all of) the fool entity. Also notably John Constantine takes up the position of the fool in the Vertigo Tarot Deck.
The Tarot spreads for The Books of Magic were done by Rachel Pollack, in whose Doom Patrol run, immediately after Grant Morrison's, Tarot imagery recurs frequently. She has published numerous books on Tarot, and collaborated with Gaiman and Dave McKean on the Vertigo Tarot deck.
An issue by Morrison featured Crazy Jane being given a reading with cards such as "The Key," "Nine of Wounds," and "Prince of Wheels." "The Key" is called "Trump 23," while the other two cards may be considered stand-ins for the suit of Swords and suit of Pentacles respectively.
Defenders (2021): Doctor Strange summons heroes to be the Defenders using the Tarot of the Secret Flame. Ominously, all the cards are reversed.
Repeated in Defenders: Beyond, though the card representing Tigra, the Ten of Crowns, isn't part of any real deck.
Tarot cards tend to show up in Hellblazer from time to time. Constantine confronted his inner demon (in a figurative, yet slightly literal sense), in the form of different tarot cards, in one issue.
Unless it's the same demon, another issue has Constantine "exorcize" all his bad habits and send them down to hell. After being an unambiguously good guy for a while, he's told via expy tarot cards (I don't recall "Reynard the Fox" in any real tarot deck) that he needs the bad parts of himself and has to regain his magnificentlymanipulative abilities. It's implied the mysterious card reader is Jesus.
A minor X-Men villain named Tarot had the ability to bring Tarot illustrations to life and command them, as well as some obvious ability in reading them.
Her teammates, the Hellions, had an annoying habit of scoffing at her divination even though they were fully aware that magic exists in their world.
In Lucifer, a deck of tarot cards called the Basanos were made by an angel in imitation of Destiny's book and achieve their own sentience. They possess the ability not only to see the future, but also to manipulate probability until their victories are inevitable.
Tarot symbolism is a significant part of DC Comics' Trinity (2008), with various villains stealing mystical swords, staves, pentacles, and cups on behalf of the Big Bads, Egyptian tarot symbols appearing on Wonder Woman's shoulder, and a kidnapped tarot reader realising that Superman, Batman, and Wonder Woman can be represented by most of the Major Arcana. It culminated in a spell by the Big Bads to access the power of the archetypes the Trinity represent, and claim their positions.
Also in Trinity, there was a Justice League Arcana and its Evil Counterpart, each hero/villain representing one of the major arcana for their side.
There actually was a Marvel based Tarot deck, though it was only the major arcana. Likewise, DC licensed the Vertigo characters for a full tarot deck a few years back.
The Marvel Tarot deck was used in-universe as a plot device for a minor rival of Dr. Strange, sent on a mysterious quest to gather artifacts aligned with the 4 suits and 4 ancient gods in order to seal some ancient evil/preserve magic in the Marvel universe. The deck itself was in this guy's possession and when drawn from would depict villains or heroes on the cards (though not always the same person every time), symbolizing their fulfillment of that specific role within the Marvel Universe. For example, Dr. Strange would come up as the Magician 9 out of 10 times, but the other time, one of his rivals would appear on the card instead. Most of the time the Scarlet Witch would show up as the High Priestess, but sometimes it would be Storm (indicating her latent magic potential and her role in the Marvel universe).
A memorable issue of Alan Moore's Promethea used the Major Arcana of the Tarot to illustrate the history of the universe, from the Big Bang onward.
World of Flashpoint #2 has Traci Thirteen using Madame Xanadu's tarot deck to locate various people who can advise her or serve as an example, each of whom is the living archetype of a card. The characters she meets are: A Red Tornado android who can't leave the lab he was created in (The Hermit); a freedom-fighting cyborg Nat Irons (Justice); a near-feralBeast Boy (The Chariot ... somehow); a Buddhist pacifistGuy Gardner (Temperance); an imprisoned Circe (The High Priestess); and FatherJason Todd (The High Priest).
In The Secret History, tarot cards are tools of immense power based on the immortal Archons' superpowered runestones. The Archons and those in the know — referred to as "players" — call tarot cards "blades."
In Cerebus the Aardvark, the cover art for the issues in the Reads arc as well as the cover for the phonebook featured Tarot themes.
Trinity War has Madame Xanadu foresee those involved in the eponymous war via tarot cards. However they are not your typical cards. For example, Superman is The Hero, Shazam is The Boy, and Pandora is The Hostage.
Deathlok in ABC Warriors commonly reads the future in tarot cards, and his favourite weapon is a blade called the Ace of Swords.
Major characters and even some locations in The Incal correspond to Major Arcana cards. The main character is even named John Difool.
The Batman one-shot issue Book of Shadows heavily features tarot cards, as one of the villains designed his own tarot deck and Batman consults with a reader. Batman is frequently referred to as "The Hanged Man" and is shown associated with such cards as The Chariot and Death.
.