Loki was, in fact, still terrified of the Hulk in
Hulk is probably one of very few people that has not only laid a hand on Loki but actually kicked his ass and hurt him. I think when he saw Hulk come out to fight Thor, he easily envisioned himself in that arena getting his ass handed to him if Gamemaster wished it.
Loki regards the Hulk as a danger to society, and, because the God of Mischief is attempting a heel-face turn in order to become a hero, he decides to defeat the Hulk. Of course, even despite his Asgardian strength, Loki is no match for the Hulk so he doesn't bother using his strength to subdue the beast.
The very sight of Loki's unsupervised reactions to the footage reveal a lot about the character's love of his family and his genuine fear of death.
Thor's arrival at Asgard. Loki's clearly afraid, he yields, retreats and backs off at the first sign of aggression from Thor. Compare it to his reactions to Thor, in Thor1 and Avengers. At first he's afraid when Thor appears, but then he holds his ground, either attacks or Thor's threats doesn't faze him.
Loki's greatest weakness is water and his spells do not work in water.
For His Family To Be Torn Apart
One of Thor's biggest fears was for them to be torn apart, but he had to suffer outliving them after all three died before his eyes. Thor's reaction to losing Loki, in particular, is heartbreaking because he realizes that what he feared for so long had now come to pass.
The greatest and most challenging foe Loki has faced is perhaps his own brother, Thor. While the two were raised as siblings by Odin, envy drove Loki's desire to overthrow Thor., Loki is frequently defeated by the god of thunder, but is never discouraged from persevering in his efforts.
Tony Stark's biggest fear: Failure to protect the world and those he loves.
Thor's main fear is losing his worthiness because it would mean he isn't fit to protect Earth or lift Mjolnir.
But in The Incredible Hulk 107: Warbound, Hulk proves that he's undeniably capable of laying the smack down on an actual deity.
However, just because Ghost Rider doesn't have any reason to kill the Green Goliath doesn't mean he can't, as hellfire is revealed to be the one thing that can actually kill the Hulk–and the Hulk himself confirmed it.
Fans have speculated that Hulk's unwillingness to fight is because he's scared of losing to Thanos again, but the writers and directors behind Infinity War have denounced such speculation. Turns out Hulk isn't scared; he's angry. Spoilers for Infinity War follow. Want us to remember this setting for all your devices?
While he might have been able to defeat him, the Hulk could inflict some serious damage to Thanos and could conceivably kill him if given the chance. That threat to his life would be a completely unnecessary risk for Thanos to take without the absolute power of the Infinity Stones.
Even when he was power-hungry and arrogant, Loki was smart enough to know to fear Thanos. He was familiar with Thanos' past planet cleansing, and that is why Loki believed he was key in ruling Earth. He knew how powerful the Titan was, but more importantly, he knew how powerful the Infinity Stones were.
Mandarin - The archenemy of Iron Man, the Mandarin is a Chinese nobleman, scientist and former diplomat turned criminal mastermind.
Peter has sadly been one of the MCU characters who experienced a lot of loss at a young age. He's now had to watch the likes of Uncle Ben, Tony Stark, and Aunt May die before his eyes, and the fear of losing his loved ones is his primary concern.
1. The Mandarin. The Mandarin is designed as Tony's equal, and that is what has often made him so difficult for him to handle. In the comics, it's the Mandarin who originally captures Tony and forces him to build the suit, and he's resented the weapons magnate ever since.
At any time during your turn, you can use Leah, Loki's BFF's Ability to perform one available/uncovered action at her location.
Loki and Thor are both gods and have immense godly powers that make them somewhat impervious to harm, though they can be beaten; they can lose eyes (Thor) and they can die (Loki). If the metric is physical strength, then Thor is easily the winner.
While none of his Loki beatings were as one-sided as the one MCU fans saw in 2012's The Avengers, his pretty unbeatable physical might is just too much for Loki. While he can be easy to manipulate, Hulk's been able to break through Loki's illusions and smash him.
As per the user, the director of Avengers confirmed that Thanos was most scared of Iron Man. “Not because of his strength, not because of his power, not because of his power, but because of his suit,” he added.
Thor is repeatedly vanquished by the 5 new Phoenix hosts over the course of 12 issues: Colossus, Namor, Cyclops, Magik, and Emma Frost. Colossus even manages to knock Mjolnir out of Thor's hands at one point, demonstrating the strength of Phoenix and why it should not be trifled with.
Discovering a talent for magic and manipulation, Loki became the god of lies and mischief and Thor's fiercest enemy. Over the years, he's fought the heroic thunder god in many different ways, sometimes directly, sometimes by creating new super-villains, sometimes by tricking allies into turning against him.