Just gotta know what you're doing. For the big thunderbots, use their weapons by detaching em. Also set em on fire.

For the stormbirds, break the pieces off of em and swing like crazy when they fall.

Yeah probably should invest in some other weapons.
What's good for big baddies?

For the walking Deathbringer I literally ran around and put ~120 fore arrows in it.

Doing the hunting grounds all over the map teaches you kind of how to kill most the enemies you face by doing the challenges.

Interesting. Guess I will do this as well. I've been main lining the main quest but maybe it's time to deviate.

You should do everything. The side stuff doesn't add a million fucking hours like in the witcher or something similar. It is a really nice length if you include everything.

I am.probably going to end up doing for soe.thing trophy related anyways. But the story is good so I was hooked. =P

Deviated from the main quest line. Got infinite fast travel, ability to call a mount without over ride, new weapons, new outfit, and cleared a few bandit camps to get a few levels.

Pretty sure the trophies are messed. Haven't popped 30 headshots but have 43 in stats menu

The hunting ground trials are easily the worst part of the game. Just have to finish them up and I'll have the plat.

Yeah they are a pain at least they are not to hard just can be a pain if you mess up early.