Quote Originally Posted by ladyhighlander View Post
The DM in this game is my husband and he doesn't have anything against me and I didn't take it personally. He legitimately thought autocrit is autohit and was going to (what he thought was stategically) take my character out. What he had in mind I'm not sure but my best guess is he was going to take her out for story. He's an amazing DM, it was just this instance that gave me pause. I keep my mouth shut on fudged rules but this one felt very unfair and as I don't jump in to correct normally I had no idea how to approach this.

Note: Assassins in 5e get autocrit on surprise rounds on a hit.
If his attempt to kill you isn't an attempt to ruin the game then it's possible he's not trying to kill you, and by preventing what he had in store you avoided a big plot hook.

I'm revising my advice to this: let him "kill" you, either it leads nowhere and he learns to not do that or it leads somewhere interesting filled with story and character growth