Gun x Sword

In a world where the boundaries between fantasy and reality blur, a mysterious swordsman named Van embarks on a perilous quest for revenge against the man who murdered his bride. Armed with a shape-shifting sword and a mechanized suit of armor, Van faces off against a array of dangerous foes, including a claw-fisted villain, bandits, and a mysterious woman. As he navigates through the unforgiving landscape of the "Planet of Endless Illusion," Van must confront his own demons and confront the harsh realities of a world gone mad. With the help of his unlikely allies, including a young girl named Wendy, Van must bring the man with the clawed hand to justice before it's too late.

You can stream Gun x Sword on: Crunchyroll

Some TV shows that have similar genres and were produced around the same time as Gun x Sword include Blue Eye Samurai, Invincible, Arcane: League of Legends, Star Wars: Tales of the Jedi, Scavengers Reign, Vinland Saga.