Thanos wipes out half of all life with the infinity gauntlet - Avengers Infinity War
110
Top 10 Worst Things The Marvel Cinematic Universe Villains Have Ever Done
#2
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Anonymous
Ego kills Star Lords Mother with a tumor, used his kids as conduits, and tried to turn everyone into copies of himself - Guardians Of The Galaxy Volume 2
110
#3
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Anonymous
Alexander Pierce betrays Nick Fury and tries to destroy SHIELD - Captain America: The Winter Soldier
90
#4
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Anonymous
Hela decimates Asgard And causes Ragnarok - Thor Ragnarok
91
#5
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Anonymous
Loki lies to Thor about Odin and tries to destroy Jotunheim - Thor
70
#6
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Anonymous
Loki brainwashes Hawkeye, kills Phil, and invades New York - The Avengers
70
#7
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Jacob Koopmann
Baron Zemo frames Bucky and plans the events of Civil War
60
#8
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Anonymous
Ronan The Accuser murders the family of Drax and wages war on the Nova Corps for the power stone - Guardians Of The Galaxy
60
#9
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Anonymous
The Ten Rings terrorist organization kidnaps Tony Stark and Forces him to make weapons for them - Iron Man
60
#10
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Anonymous
The Kree empire destroys the skrull home planet and attempts to commit genocide on the skrulls - Captain Marvel