The concept of fairies varies greatly across different cultures and mythologies. In some stories, fairies are portrayed as benevolent, playful beings who live in nature and have magical powers. In others, they are more mischievous or even malicious, using their powers to trick or harm humans. Therefore, what can beat a fairy will depend on the specific type of fairy and the context in which they appear.

One way to approach this question is to consider the weaknesses or vulnerabilities commonly associated with fairies. For example, in some traditions, fairies are said to be unable to tolerate certain substances or objects, such as iron or cold iron. This is known as “cold iron” or “iron sickness.” According to folklore, cold iron can disrupt the magical properties of fairies and cause them pain or weakness. Therefore, weapons or tools made of iron, such as swords or scissors, could potentially be used to defeat or defend against fairies.
Another weakness associated with fairies is their aversion to certain plants or herbs. In some stories, fairies are said to be repelled by plants such as St. John’s wort, which is believed to have protective properties against evil spirits. Similarly, rowan, holly, and mistletoe are also associated with protection against fairies. Therefore, carrying or wearing these plants could potentially ward off or weaken fairies.
However, it’s important to note that not all fairies are vulnerable to these substances or objects, and different cultures and mythologies may have different beliefs and traditions regarding fairies. In some stories, fairies are portrayed as immune to certain forms of attack, such as physical harm or spells. In these cases, it may be necessary to use other strategies to defeat them.
One possible strategy is to outsmart or outmaneuver the fairy. In many fairy tales, humans are able to outwit fairies by using cleverness, cunning, or a loophole in their agreements. For example, in the story of “Rumpelstiltskin,” a young woman is able to avoid losing her child to a fairy by guessing the fairy’s name. In “The Elves and the Shoemaker,” a shoemaker is able to repay his debt to helpful elves by making them tiny clothes. These stories suggest that humans can overcome fairies by using their wits and ingenuity.
Another strategy is to seek the help of other supernatural beings or entities. In some traditions, fairies are said to have rivals or enemies among other supernatural creatures, such as demons, angels, or gods. Therefore, it may be possible to call upon these beings for assistance in defeating fairies. For example, in Irish mythology, the god Lugh is said to have defeated the Fomorians, a race of monstrous beings that included some types of fairies. Similarly, in Norse mythology, the god Thor is able to defeat the giant Thrym and retrieve his stolen hammer with the help of the trickster god Loki. These stories suggest that humans may be able to defeat fairies by enlisting the aid of other supernatural beings.
Ultimately, the question of what can beat a fairy is a complex one that depends on many factors, including the specific type of fairy, the context in which they appear, and the beliefs and traditions of different cultures and mythologies. While some fairies may be vulnerable to certain substances or objects, others may require more subtle or creative strategies to defeat. In many cases, humans may need to rely on their intelligence, resourcefulness, and the help of other supernatural beings to overcome fairies and protect themselves from their magic and mischief.