How to Get the The Sign of The Hydra Achievement
The Sign of The Hydra
Get 8 different Autocast Blessings with Merris
You need to have 8 skills with Autocast in them. So you need to fish a bit for the right Gods combination to show up in your run.
The Gods of Fire, Lightning, and War each have three Autocast skills they offer up.
So if you get two of those, you just need one of the other Gods to at least have two Autocast skills.