I think the rise of Gruul by itself makes Dralnu not quite Tier 1, since it is forced to adapt more cards to dealing with the little men. This weakens their overall game against the other control decks in the metagame. Also, the reise of Detritivore and Aeon Chronicler aren't nice for Dralnu to deal with. I hate the Tier 1.5 idea, but realistically I put Dralnu at the top of the Tier 2 group of decks. Here's how I would break it down:
Tier 1: Dragonstorm and Gruul
Tier 2: Dralnu, and then all the other mid-game controllish blue decks, like IzzetTron, Angelfire, Solar Flare, Pickles etc.
Tier 3: most other semi-respectable decks, like Dredge, Black Rack, Goblinstorm, GBW control, etc.
I hesitate to put NarcoBridge any higher than Tier 3 simply because it isn't really tournament tested yet, but it may perhaps be Tier 2 afterall. Time will tell.
Tier 1: Dragonstorm and Gruul
Tier 2: Dralnu, and then all the other mid-game controllish blue decks, like IzzetTron, Angelfire, Solar Flare, Pickles etc.
Tier 3: most other semi-respectable decks, like Dredge, Black Rack, Goblinstorm, GBW control, etc.
I hesitate to put NarcoBridge any higher than Tier 3 simply because it isn't really tournament tested yet, but it may perhaps be Tier 2 afterall. Time will tell.
Thanks to Avatar for the rockin' Sig and Avvy!