Arthur Weasley's wand characteristics are unknown in canon, so i have a theory what they could be.
Wood: Hornbeam.
Hornbeam selected for its life mate the talented witch or wizard with a single, pure passion, which some might call obsession - more kindly - vision, which would almost always be realised. Hornbeam wands adapted more quickly than almost any other to their owner's style of magic, and would become so personalised, so quickly, that other people would find them extremely difficult to use even for the most simple of spells.
Arthur is very devoted to his hobby and work with muggle objects, which you could call an obsession. And he has shown great proficiency with many spells, which means he does not lack talent. This wand wood suits Arthur perfectly.
Core: Unicorn hair. This core produces most consistent magic, just like we see Arthur in the series. He can cast a patronus and fix glasses without a problem. It is also hardest to turn to dark arts, and Arthur would not allow that to happen.
Length: 11½ inches. Longer wands can indicate a bigger personality and also a more dramatic style of magic. Arthur was definitely not lacking in character, so i imagine wand length somewhere in middle would be good.
Flexibility: Swishy. This flexibility just sounds like it would suit Arthur. He is pleasant and curious.
Thoughts on this?
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