In the heart of Kathmandu, Nepal, the Masters of the Mystic Arts are trained at Kamar-Taj to harness energy drawn from other dimensions of the Multiverse to cast magic spells, conjuring shields and weapons from its fiery energy, such as Eldrich Whips.
In 2015, former Masters Kaecilius and his Zealots infiltrated the library of Kamar-Taj, stealing a ritual from the Book of Cagliostro in the private collection of his former mentor, the Ancient One. When confronted by the Librarian, the Zealots used their Whips to restrain and suspend their fellow sorcerer before Kaecilius killed him. When the Ancient One arrived to capture the Zealots, they quickly fled through a portal but were trapped by the sorcerer in the Mirror Dimension, where they faced off against the Ancient One, conjuring whips to restrain her but were instead overpowered.
In the months following a car accident that ruined his hands, Doctor Stephen Strange arrived at Kamar-Taj to train with the Masters and heal his hands. During a sparring session with Karl Mordo, Strange was instructed to summon a weapon and forms the Eldrich Whips to battle against Mordo. However, Mordo outmaneuvered Strange using his enchanted boots and defeated him.
After the Zealots' destroyed the London Sanctum, Strange was thrown by the blast into the New York Sanctum, where he witnessed the Zealots executing the Sanctum's Master, Daniel Drumm. Strange quickly conjured an Eldritch Whip, using it to hold off the Zealots before retreating into the Sanctum. When Kaecilius forced him into the Relic Chamber, Strange used his Whip to defend against the sorcerer's Space Shard before restraining him with the Crimson Bands of Cyttorak.
When the Black Order arrived on Earth for the last of the Infinity Stones, Ebony Maw and Cull Obsidian traveled to the New York Sanctum to retrieve the Time Stone. However, due to Doctor Strange placing an enchantment on the Eye of Agamotto, Maw instead kidnapped the sorcerer to bring to Titan. After defeating Maw, Iron Man, Strange, and Spider-Man created a plan with the Guardians of the Galaxy to defeat Thanos on his home planet, using Strange as bait.
As the battle began, the Titan quickly overwhelmed the combined effort of the Guardians and Avengers, leaving Strange the only combatant standing. Using his Eldritch Magic, Strange was evenly matched by Thanos' use of the Infinity Gauntlet, summoning dozens of duplicates of himself to attempt to restrain Thanos with their Whips before the Titan used the Power Stone to destroy the projections.
To be added