I’m really fond of the amnesiac badass trope where the character has no clue about their past but is capable of amazing feats. It lets the history get peppered in the story either by other characters that cryptically know the person’s history, or through self discovery.

I’m also a fan of the cursed powers trope: person has great power but it destroys their body if they abuse it or something.

One of my most favorite tropes ever tho is magical eyes, largely due to me thinking the Sharingan and its variations were some of the coolest fictional abilities ever in both design and application.

Other notable mentions are: monsters plaguing the world, badass loner, cursed with sickness (like Itachi), unorthodox weapons (I love scythes, gunblades, dual-sided swords, etc).