We played a 3 player Frosthaven on TTS yesterday.
My partner was the Bannerspear, our friend played the Drifter and I tried my hand on the Deathwalker.
After taking about an hour to figure out the basics of the TTS module, I died in the first room. To be fair I tried baking bread and talking everyone through the TTS details while they had time to figure out their characters.
What I really want to say is: wow, I really really want to play the Deathwalker again now that I know how NOT to play her. She gets to place up to 5 shadow tokens, although at the start she has only two bottom actions that can place 1 each and 1 top loss action that places 2. Then she can use those shadows for a variety of fun things like: attacking through the shadows, using the shadows to enhance attacks or summoning something out of the shadows. The trick is to get out enough shadows without dying.
Right now there is no consolidated rulebook for Frosthaven and the only thing I had to figure out how to play her was a playing card full of text explaining a few of the details regarding shadows.
I didn’t really find out much about the other 2 characters I played with as I was too busy sacrificing cards to not die immediately. The Deathwalker is definitely not a tank.