Or instead of playing disruption, maybe we could look at Sacrament as the ultimate Doomsday. Doomsday + Gush -> win. Sacrament by itself -> win. Maybe just toss it directly into one of the old Doomsday builds in place of Doomsday and let Tendrils/EtW do what they do. I rocked the aggro and stax-heavy St. Louis meta with the deck.
I apologize in advance for not really understanding your argument here.
On a good day with a Doomsday build, you cast DD and win either that turn or on the following turn with the combo. On a good day with Sacrament, you're eliminating key (pun unintended) components/win conditions. In the former you win immediately but, with the latter, you need additional plays to facilitate victory.
Further, while a DD deck might have a chance of stealing an early win from an aggro deck, an early Sacrament could grab, what? Null Rod, Some of their 'Goyfs or disruptive creatures? Or the Bazaars in Dredge (provided they haven't aggressively mulled into them?) That amounts to a Time Walk for them. And, of course, if you're already playing combo (G1), then you're praying for the same aggressive combo draws as the DD player anyway.
Now, the more I write - and check on T8s on Morphling.de - it does seem like a Sacrament would be really devastating to the general short-term metagame (my position comes from a very aggro-control oriented metagame.) Consider this T8 (
http://morphling.de/top8decks.php?id=1139) where every deck save for Bazaar would be rocked by an early Sacrament and, even then, you could cause significant damage to that Bazaar deck's game plan.
So, somewhat reversing my initial idea, does the presence of Sacrament guarantee more aggro-oriented T8s?