Who could be the main antagonist in the 'Harry Potter gets a griffin wand' fanfiction?

Well, he might have enhanced magical abilities. The griffin is a powerful and majestic creature, so the wand could give him unique powers, like better control over transfiguration spells.

Maybe it's an old wandmaker from a far - off land. This wandmaker has been crafting wands for centuries and has a unique intuition about which wands are meant for which wizards. He sees something special in Harry and presents him with a new wand.

In this fanfiction, it might be that the main antagonist is actually a part of Harry himself. His inner demons, so to speak. The 'wasted' state could bring out his insecurities and negative traits, and these could manifest as an internal struggle. So, in a way, Harry is his own antagonist as he has to overcome this self - destructive side of him.

It could be a rogue wizard who is jealous of Harry's new cybernetic abilities. This wizard might think that Harry is polluting the purity of magic with technology and decides to stop him at all costs.

There's a chance that the maker is a new character, an old hermit wizard who lives deep in the Forbidden Forest. He has been observing Harry from afar and realizes that the wands available in the regular market are not sufficient for him. So, he uses his knowledge of forgotten magics to craft a custom wand just for Harry.

The antagonist could be a jealous Slytherin student. They might see Harry's new snake as a threat to their own status in Slytherin house. So they try to steal the snake or harm it in some way.

It could be Dumbledore. He always had a way of presenting Harry with things that would help him on his journey. Maybe Dumbledore had been holding onto this second wand for a special occasion or because he knew Harry would need it in the future.

It could be Draco Malfoy. He might make fun of Harry for his new fitness obsession, thinking it's a silly Muggle - like pursuit. And this could lead to a series of confrontations between them.

In the 'Harry Potter gets a second wand fanfiction', it could change his relationships too. His friends might be both amazed and a bit worried. Hermione would probably be eager to study the implications of having two wands. Ron might be a bit jealous at first. And Harry himself would need to learn how to balance the power of two wands, which could be a real struggle, both physically and mentally, as different wands have different 'personalities' and he'd have to master them both.

Perhaps in this fanfiction, the custom wand is created by a very eccentric wand - maker. This wand - maker could have some strange ideas and methods. The wand could be designed to work in harmony with Harry's emotions. So when he's feeling angry, it might produce a more powerful spell, and when he's calm, it could be more precise. This would add a new dimension to Harry's magical abilities and how he uses them in different situations.