Doctor Doom is the final boss of this month’s event quest. I have some videos that may help you decide which champion you should choose to fight him.
Duel Target for Doctor Doom: Limited_Edition
(Duel Limited_Edition to practice evading Doom’s special attack)
KT1 has made a video showing the best counters.
A guide created by Jason Voorhees with some great tips
Champions Used: She-Hulk, Spider Gwen, Void, Hawkeye, Vision, Psylocke, Stark Lord, Human Torch and Ghost