Thanks for posting. Congrats on getting your scene jump started again. Having played something similar recently, I had some questions on your list...
3 Dark Confidant
Although I was originally opposed, as the metagame became more and more attrition based I really came to see the value in a full set of Bobs. Do you have a specific reason (life loss?) or is this outcompeted by a specific card in your 60? Or do you just not want four?
1 Toxic Deluge
Do you think this is a consistent MD card? How much might this have to do with your local metagame expectations (that's a pretty beefy T8)?
0 Abrupt Decay
I remember another thread about ADecay and I think you had an unfavorable opinion on this card. I can't find the thread and I don't recall specifics. Is it mana issues? It's been great for me, as a catchall and even against stuff like Merfolk where (ostensibly) it's tough to cast.