I played Drain Tendrils, trying out Soly's suggestion of Regrowth and Fastbond.
Round 1 - Alex Frankson, Belcher.
Game 1: He wheels turn 1, but Wheels me into 2x Fow - he empties his hand and I stop his belcher. I win with Tinker shortly thereafter.
Game 2: I have the FOW for his turn 1 business and fastbond into mana drain mana.
1-0 (2-0 games)
Round 2 - former SCG champ Jameson Bryant, GBW good stuff
Game 1: Turn 1 Tinker for DSC takes it home for me.
Game 2: I get a turn 1 Goyf, he gets stuck on 1 Scrubland and all 5 of his strip effects and can't cast any of his own Goyfs or more than 1 black spell per turn. Duress doesn't help much vs a big green creature.
2-0 (4-0 games)
Round 3 - Jake, Scepter
Game 1: I have tons of gass, but in the first 2 turns he has FoWx2 and Mana Drain.

I almost pull it out anyway, but like a dumbass, I split his Fact or Fiction pile wrong (the pile was 2xFOW, Sol ring, Mana Drain, Rushing River) - my first instince was 2xFOW in one pile, but for some reason I threw the sol ring in that pile which led to him having exactly 10 mana to hard cast both.
Game 2: I mull to 5 and start out way behind.
2-1 (4-2 games)
Round 4 - JACO, UBG goyf confidant
Game 1: we trade until eventually he tinkers for lotus(?) to hardcast Titan the following turn. This wrecks my manabase and sends us to game 2.
Game 2: I get an early Tinker -> DSC. I think this was turn 1.
Game 3: I mull to 6, but he mulls to 5. I have a turn 1 or 2 Goyf and eventually get a second one and they both get there.
3-1 (6-3 games)
Round 5 - Owen, Painter
Game 1: don't remember, fairly sure he played better than I did.
Game 2: mull to 5, his REBs trumped my cards and I never saw any duress.
3-2 (6-5 games)
Round 6 - Nam Tram, MUD
Game 1: my first turn is nuts - Fastbond, Ancestral,Gush - end my turn with 3 open mana having drawn 5 cards. I drain his crucible and then hardcast DSC on my second turn. He gets a Staff of Domination out, which holds off my DSC for a bit, so I just Will and Tendrils him. That's my first tendrils kill of the day.
Game 2: I get turn 1 Goyf, followed by Tinker for DSC. HE fends that off with Staff and recurring Mishra's factories with crucible. I build up some mana to try and force the Tendrils kill through and he starts wasting my underground seas, which doesn't leave him enough to block the Goyf. Once he gets low enough Time Walk takes it home.
So I end up 4-2 (8-5 games), which is good for 10th.
AK was crap all day long. Goyfs were great. Regrowth was good. I'm torn on fastbond.