I know that the MCU uses the "science so advanced it seems like magic" trope, but in the comics, every spell, every page and every incantation in the Darkhold had built in traps that could enslave your soul to Chthon if you didn't know how to protect yourself from the dark magic. For instance, in an X-Men annual where the team is fighting Dracula, Kitty starts to recite the Montesi Formula, a spell designed to destroy vampires. If she had finished the incantation, her soul would have been forever lost. However, a few months later, Dr. Strange was able to recite the Montesi Formula without harm.
In the comics, there are two great magic books; the Darkhold and the Book of the Vishanti. One is dark magic and the other light. If you think of magic as the Force, the Darkhold is a Sith holocron and the Vishanti a Jedi holocron. The Darkhold is "quicker, easier, more seductive" to quote Yoda, and it's use almost always comes at great cost to the user.
In the comics, there are two great magic books; the Darkhold and the Book of the Vishanti. One is dark magic and the other light. If you think of magic as the Force, the Darkhold is a Sith holocron and the Vishanti a Jedi holocron. The Darkhold is "quicker, easier, more seductive" to quote Yoda, and it's use almost always comes at great cost to the user.