I still can't say with any certainty, I've only played with soothsayer a few times. Given another go on that board I'd probably try for the Soothsayer engine build again but that's just because I hate IGG and I think my build could've come together a bit better. Watching the video I can really see the tradeoff to the +1 card on Soothsayer, it was huge for you a couple times. Given my strategy I probably should've opened fishing village and hoped to get lucky for 5 on the second shuffle, that would've helped in the long run but I was hoping the silver would be the short term boost I needed and I could back into a couple fishing villages mid game(FV would also help with all the ruins, which I didn't really think about during my open). I think once you go soothsayer you want to avoid IGG as each IGG purchased diminishes the value of the soothsayer in your deck - though losing the curse split 7/3 certainly isnt ideal. Anyway, it is an interesting question, I'm curious what other people think?