Harry's magic is based on spells and incantations, while Ebony Maw has more of an otherworldly, telekinetic kind of power. But Harry has the advantage of being able to quickly adapt spells. For example, he could modify the Stunning Spell to have a more powerful impact on Ebony Maw.
In 'ebony maw x oc fanfiction', a frequently seen theme is the clash of personalities. Ebony Maw is a very distinct character, and when paired with an OC, there are bound to be personality clashes. For instance, if the OC is a very moral character, they might have issues with Ebony Maw's more amoral actions. Another common theme is the journey of self - discovery. The OC might learn a lot about themselves through their interactions with Ebony Maw. There's also the theme of adaptation, as the OC has to adapt to Ebony Maw's world and his ways of doing things.
Perhaps Harry teams up with some of his friends from Hogwarts. Ron could use his strategic thinking, and Hermione her vast knowledge of magic. Together, they create a magical trap for Ebony Maw. Harry, being the main hero, would be the one to lure Ebony Maw into the trap and then use a powerful combination of spells to stop him.
One great 'ebony maw x oc fanfiction' is 'The Bond with Ebony Maw'. It delves into how an original character might interact with Ebony Maw's complex personality. Another one could be 'Ebony Maw and the Unlikely Ally' which shows a unique relationship between the two. There are also some on fanfiction.net that are worth exploring.
The 'Secrets of the Maw Story' might refer to a story that has elements of mystery and enigma centered around the 'Maw'. It could be a dark and foreboding place where there are secrets related to its origin. For example, perhaps it was created by some ancient and powerful force, and the story is about uncovering that truth. It could also be about the secrets of the creatures that live there. Are they guarding something? What are their motives? All these could be part of the secrets in the story.
I'm not sure specifically what 'maw graphic novel' is about as there could be many with that name. It might be about a fictional adventure, perhaps in a strange and otherworldly setting, with unique characters.
Since I don't have direct knowledge of this particular 'dragons maw fanfic', it could be about the experiences of different characters in relation to a dragon's maw. For example, it could be a story about a group of adventurers who are on a quest to explore the secrets of the dragon's maw. They might encounter different creatures and obstacles on their way, and the fanfic could detail their relationships, their growth as individuals, and how they ultimately deal with whatever they find in the dragon's maw.
In some Harry Potter fanfictions, the 'Maw of the Basilisk' might be a sort of lair. Since basilisks are large and fearsome creatures, their maw (which means a large, menacing mouth or opening) could be the entrance to a hidden place. It could be filled with all sorts of magical elements that are part of the fan - created lore, like ancient spells or magical artifacts that the basilisk guards. Authors might use it as a central location for adventures in their stories, where the characters have to face the perils within.