Hydra has a long history. In ancient Egypt, the brilliant deeds of the Egyptian wizard Yin Hetan (the bald villain in the mummy series) against the apocalypse inspired the survivors. According to Yin Hetan's weapons, spears and shields, two secret organizations were established, namely the Holy Shield Brotherhood and the Holy Spear Brotherhood. Needless to say, the shield evolved into a shield, and the spear evolved into a hydra.

Hydra has many opportunities to make public appearances in the Marvel universe. From the story timeline to the comic creation timeline, it has been tossed for more than half a century. Opponents include Captain America, Nick Frey, his Howling Commando, Wolverine, Spider-Man, Hulk and others, who literally can't kill Xiao Qiang.

The red skull basically represents the state of hydra. He is a super boss, and he is an immortal Xiao Qiang from the inside out. Even if it is smashed, it can still survive.