I would make some adjustments to the mana base. Even with lavinia sea is your most important dual so I would up it to 3 seas and drop to one tundra and one scrub. Early sea gives you duress, rit, recall, + cantrips and it will feel bad getting your only copy striped/wasted. Also would move karakas to the board and add basic swamp. Also I didnt see necro in the deck. I would definetly add as there will be times where it's your best route to win thru dark petition.
I'm going to give this list a shot. I'm currently playing a similar main (+1 LED, -1 thoughtseize, -1 chain, +1 grid, +1 preordain, +1 DP, - MD, - TW), but a fairly different board. I've found walk to be worse than preordain in most cases when only running Tendrils as a win con. Do have it in primarily due to tinker-bot in the board? How's your consistency with MDs? I found it sometimes hard to cast and other times you could just win anyways with another DP, but maybe i need to reevaluate. Also curious about the leylines. Looks like they're only coming in against dredge. I've had success with crypt here as usually crypting them when their first GY triggers hit the stack is enough time to go off and it helps bolster the storm count. Looking forward to getting your thoughts and trying this out!
@smmenen I also agree here. As someone who just started playing vintage again recently after a long hiatus the format seems great. I'm not sure I would have picked it back up if there were only 2 or 3 viable decks. To speak to the diversity, in 10 rounds at EW I played against 8 different decks and it was a blast!
@popedeuce37 not that I'm aware of. We did play a sanctioned vintage event at Mr. Nice Guys in October. There is a smaller group of us a little over an hour east of pittsburgh that has started playing about once a month and allow proxies. How many in your group and what area of pittsburgh? Also, if u do find any tournaments please let me know and well try to get there.