Hogwarts Legacy - How To Get A Graphorn Mount And Pet

gamespot.com:

There are many Fantastic Beasts that you can encounter in Hogwarts Legacy. Most of the time, they'll simply run away and when you attempt to catch them. One creature, however, is far deadlier. Here's our Hogwarts Legacy Graphorn guide to help you get this animal as a mount, as well as capture additional ones if need be.

To be clear, the Graphorn is currently the only ground mount in Hogwarts Legacy. It won't become available until you complete San Bakar's Trial, which is one of the last few quests in the game. As such, you'll just need to progress further in the campaign until it becomes available.

Once you do start it, you'll go to Cragcroft Shore, which is in the southern half of the world map. Use Incendio or Confringo on the vines to reveal a Graphorn carving. From there, you're tasked with capturing a Graphorn. Its den is located in Clagmar Coast, at the southeastern tip of the map. You can use your broom or flying mount to reach the location faster.

The Hogwarts Legacy Graphorn is unlike most other Fantastic Beasts that you've seen before since it's a boss encounter. Its has very basic attacks: it'll simply charge and ram you. But, it's also got a tough hide that's able to withstand a lot of damage. Apart from your Ancient Magic and Ancient Magic Throw, only your red spells (i.e., Expelliarmus, Incendio, Confringo, and Bombarda) will be able to deplete its health.

Focus on the fight and dodge-roll when necessary. Once you've taken it out, a short cutscene will play and you're presented with a choice:

Either way, your character will ride the Graphorn. You'll be able to use its special charge ability. You can activate this by holding down the attack button. It will bulldoze enemies, as well as ram through barricades.