Boss fight from the nightstorm isle dlc. Wasn't really planning to fight this boss without the a.i but I found it impossible to consistently clear all the enemies(without spears) so I just got gud at rushing to the boss room.
Tip: generally dodge to your left against Riak (his right). This is because his talon is on his right hand. So his horizontal swings have more active frames going to your right than to your left, making it much safer to dodge left, because you won't get caught by the end of his swing. This is a classic Soulslike game tip. *Dodge INTO a horizontal attack,* _not_ away from it. Use your invulnerability frames.
Thanks a bunch. If I recall there are pieces of armor scattered throughput the dlc map and you have to find them to pop the trophy. I used this link to track them down. www.trueachievements.com/a282466/prophecy-achievement