Reanimator and TES are unwinnable if they open god hands, sometimes that just happens. Don't be afraid to throw a Pierce or REB at their Brainstorms, they tend to use them as a crutch moreso than other decks. Vortex is great against certain builds of Miracle like the creatureless builds, but against the Lossett builds it can be pretty bad sometimes. I've heard of people boarding out some number of Wastelands here since it's really hard to get good value out of them against good players, and it increases your live draws in the mid-late game. I haven't personally tried this yet but I do like the idea of it, it obviously depends on their build a lot since their manabases tend to vary in the Karakas and Mystic Gate region. Shardless is a pretty even matchup where I would say Mongoose is MVP if you can't tempo them out with delver backed up by soft counters. It might be worth it to keep some number of Forces in here since they have so many cards that we just die to if they resolve (lily, jace, ancestral). I think it might be a good move to change the TNN in the main to a Vendilion Clique. It's better against all these decks except Shardless.

Good luck, bring that A game sir Dr. Doctor sir.