The arrival of Anime Defenders Update 5 marks the addition of two new items, known as Athenyx's Key and Athenyx's Tether. If you're unsure about what their purpose is and how to obtain them, you've come to the right place, as I'll be walking you through all the important details.

Athenyx's Key is, as the name suggests, a special item that can only be used in the Anime Defenders Athenyx Realm. It was introduced on August 24, 2024 as part of Update 5. At this point, you might think that it is required to enter the realm.

However, it's the opposite of what you thought, because Athenyx's Key is an item you need to leave the realm, otherwise you'll be trapped inside it with all the items and units you've obtained so far. There are two ways to get Athenyx's Key in Anime Defenders.

First, you need to jump into the Athenyx Realm, which requires you to reach at least level 30 in the game. The item drops randomly in this mode, so keep an eye out for it. You can also complete this season's battle pass to get this Athenyx's Key.