To get troll bogeys in Hogwarts Legacy is easy when you realise you just have to find and kill them to collect the sticky rewards. The only difficulty might come from the fact that most trolls will probably outrank you by a good few levels when you start looking for them.
Hogwarts Legacy troll bogeys are a useful potion ingredient and also factor into an assignment for Professor Onai, so you have to find one and take them on at some point to proceed. But, in order to find and kill a troll, you'll need to know where to look. The map does show a few troll hotspots, but much like finding Hogwarts Legacy Mandrake locations you have some options. You'll find a lot of trolls in the Forbidden Forest, not far from the Ghost of Our Love map location, but there are easier options if you want to get some Hogwarts Legacy troll bogeys.
Where to find troll bogeys in Hogwarts Legacy
There's an easy Troll lair in the north of the Forbidden Forest and another north of Feldcroft. You also fight one at the end of the mission 'The Helm of Urktott' which should be available at the same time you have the assignment that needs bogeys. You can also buy troll bogeys from J Pippin's Potions in Hogsmeade.
You'll get Professor Onai's assignment the day after completing your first trial. It'll involve testing Depulso on a levitated enemy and collecting troll bogeys. The assignment also specifically says your field guide won't show you where to go, so you'll have to work things out for yourself (otherwise known as googling it).
There's a few options here, and if you want to multitask you can take on the 'The Helm of Urktott' mission you should also have available. It's not the shortest quest but there will be a troll fight at the end to earn you a bogey. And if you play it right as well you can get other enemies to deal with the brute as well.
If you want to just go straight to troll lair locations there are some easy options - there is a troll lair in the northern end of the Forbidden Forest, with a Forest Troll you can fight. Go here on the map to get some some bogeys:
There's also another troll lair north of Feldcroft with a River troll you can take out as well:
You can also buy troll bogeys from J Pippin's Potions in Hogsmeade although this is probably your best option post assignment when you need them for general potion making.
You can find J Pippin's Potions here in Hogsmeade:
Hopefully, that should sort out all your troll bogey needs in Hogwarts Legacy, whether for Professor Onai's assignment or just general potions like Invisibility.
The release of Hogwarts Legacy has been the subject of criticism and debate due to J.K. Rowling's public stance on gender identity, which continues to challenge the inclusivity at the heart of the Harry Potter community. Here is our explainer on the Hogwarts Legacy controversy.
