While you can't actually expand your current Vivarium or modify it in any way, you can unlock new ones instead. In total, you can unlock four Vivariums throughout the game to tame all kinds of beasts. One Vivarium can hold as many as 12 animals, but only 4 species.
Can you increase the size of the Room of Requirement in Hogwarts Legacy?
Size. As the player continues through the main story, there will be additional quests that increase the size and capabilities of the room, including: an expansion adding an entirely new room to the left of the entrance, where a statue once stood, immediately upon completing the decorating quest.
The Phoenix, the mythical bird with healing tears that will burst into flames upon its death and then be reborn from the ashes, is the rarest creature in Hogwarts Legacy. There is only one in the game, and it can only be found and caught by completing one final quest from Deek called "Phoenix Rising."
You will be sent to Azkaban if you use Avada Kedavra on students - Hogwarts Legacy
Can you get a dragon as a beast in Hogwarts Legacy?
While Dragons exist in Hogwarts Legacy, you cannot catch or ride them like you can with other beasts and creatures. You'll encounter a Dragon in Horntail Hall during the Fire and Vice quest, given by Poppy Sweeting, which unlocks after you complete the Charles Rookwood Trial quest.
If you're getting rid of your beasts because you're running out of species slots, don't worry; completing Deek's side questline will expand your Room of Requirement and add new Vivariums—thus increasing the number of species you can have at once.
The fourth and last Hogwarts Legacy Vivarium biome that you can unlock takes you to a quaint area nestled on a mountain. To get it, finish the Niamh Fitzgerald's Trial quest, which gives you access to the Phoenix Rising sidequest.
Vivariums can only holds 12 animals maximum, and a variety of 4. Meaning you can have like 9 Hippogriffs, and 1 niffler, 1 mooncalf, and 1 phoenix or something. 4 different creatures, 12 total.
Head to the Room of Requirement and into the Vivarium and conjure up a breeding pen by using your Conjuration spell. Place both a male and female Beast of the same species and wait 30 minutes in real-time to produce an offspring. And that's it! Remember that every Beast in the game can be bred except the Phoenix.
Thankfully, there are ways to upgrade the Vivarium to increase the number of available spaces—allowing you to rescue, store, and breed all the fantastic beasts at once.
This is the third vivarium that will become available to you in the Room of Requirement during the Foal of the Dead Side Quest, which appears after the Fire and Vice Main Story quest.
The default Vivarium is capped at 12 beasts, and you can only add four total species to the Vivarium's inventory. Luckily, as you continue to progress through Hogwarts Legacy, you will unlock additional Vivariums.
Deek asks you to go and find the legendary bird in the south of the map at the Phoenix Mountain Cave Floo Flame in the Poidsear Coast region. Once inside you'll have to contend with poachers and spiders, but when you arrive at the top of the mine by the nest, you can simply take out your Nab-Sack and capture the bird.
The final upgrade is the Mountain Vivarium, and it only becomes available after the Niamh Fitzgerald's Trial quest is finished. Deek will once again have a task for the player called Phoenix Rising, and completing this side quest will ultimately unlock the Mountain Vivarium upgrade later in the winter.
How do you increase magical beasts in Hogwarts Legacy?
To summon more magical beasts, you'll need to complete Deek's quest line in the Room of Requirement. For each side quest you complete, you'll unlock another Vivarium for your beasts to run around in.
What does the plus mean in Hogwarts Legacy Beasts?
Look for a star sign next to its name (it looks like a "+") to confirm if the Beast is a shiny or not. (To make things easier, use Disillusionment so the Beasts don't run away from you.)
Unicorns are always rare in fiction and Hogwarts Legacy is no different. Here's where to find them on the map. The Unicorn is extremely rare, and can only be found in a single den, West of Upper Hogsfield. These creatures are tough to get, so make sure to follow our where to find a unicorn guide.
What is the hardest beast to find in Hogwarts Legacy?
Understandably, the Phoenix is the most difficult creature to acquire in Hogwarts Legacy. Not only is it given through a special quest, but it can't be bred, so players will only get one in the game. The other downside is that there's not a shiny version of the Phoenix.
The character has an interesting story path in Hogwarts Legacy revolving around his family and past, so you would be missing out on a compelling narrative if you turn him in. If you do turn Sebastian in, it will lock out additional content that could extend your time in the Wizarding World's darker side.
