My apologies for how late this is and as such I will be combining all 3 previous updates for the Doctor Strange Event into this update.
Episode 2:
The second episode officially started on November 13th and ended on the 16th. In this episode, you are able to recruit Mordo as well as receive 2 costumes for other characters. The 2 costumes are for Black Widow and Doctor Strange.
To unlock Mordo you will need 4 Vials of Ichor (from the Bound Mindless One), 4 Tombstones (from defeating Dweller-in-Darkness), 32 Chalk (from defeating Zealots and Eldritch Portals), and 6095 Arcane Artifacts. As with the previous episode(which I forgot to mention), there is also a challenge to unlock an Elemental costume for him. Doctor Strange has a Water Elemental costume while Mordo gets an Earth Elemental costume. Sadly the costume is no longer available as it needed to be unlocked by the end of episode 2.
For Black Widow you would unlock Cthulu Black Widow which is a silly fusion between her and the creature from Lovecraftian lore created by author H.P. Lovecraft. To unlock her you will need 6 Dead Stars (Defeat Eldritch Portals L6), 40 Floaties (Special Event Missions), 4 Tentacles (Collect from the Cthulhu Temple), and 5009 Arcane Artifacts.
And the second costume for the episode is the second one for Doctor Strange. Just as we thought he couldn’t get any more hipster-y, he did with his Steampunk outfit. This outfit doubles his attack and health as well as drops power attacks if you have the Mystic Water Shrine. You can unlock this outfit through the Supreme Sorcerer crate for 95 Infinity shards a crate.
All three of these things are instrumental for fighting this episode’s boss, the Dweller-in-Darkness. He has two guards with him and you need to take them down with your Supreme Beings and Spellbooks before you can even go after him with your heroes.
Each time you defeat him you will be awarded with Vishanti symbols which will help you climb the new leaderboards and possibly try for Immortal Sorcerer Loki. The benefit to his costume is that he will be usable in all future boss fights.
Episode 3:
In this episode, which ran from November 18th until the 23rd, you’ll have the chance to unlock Doctor Voodoo, The Ancient One as well as a costume for The Enchantress. Also, you will have the chance to fight Kaecilius.
Doctor Voodoo can be unlocked by obtaining 4 Sacred Rattles (from Doctor Voodoo’s Cat), 5 Psychology Degrees (from defeating Kaecilius), 13 Voodoo Dolls (from defeating Eldritch Portals), and 6201 Arcane Artifacts. He too did come with an Elemental costume with the Air element as his element. Sadly it is no longer attainable.