Aquaman's ability to lead an aquatic army against Orm, including the fearsome creatures of the Trench and the Karathen, demonstrates the true power of his ability to communicate with marine life.

Source: https://screenrant.com/dceu-justice-leagueheroes-most-impressice-power-display/

The villainous Atlantean goes so far as to threaten the life of Aquaman's infant child, forcing the hero to cut off his hand in order to break free from his imprisonment and save his son.

Source: https://www.cbr.com/justice-league-cartoon-darkest-tv-episodes/

Wan's movie charts Aquaman's journey to becoming protector of the ocean, which is narrated as inextricable from the superhero learning to embrace his mixed-race status as a source of strength and power.

Source: https://www.salon.com/2023/01/02/aquaman-wakanda-forever-avatar-blue-humanities/