@Varjo - I feel like tournaments where you know each other's list is a litmus test, but I've never played them. It's possible to play around the blue gearhulk by not attacking for a turn and then either using instant-speed removal on it or playing another threat after combat, although I doubt I'd think that far in a game on ladder. And of course, while opponent will sideboard removal that can remove Gaea's, this deck will also sideboard more threats that need to be countered. I wonder how post-board games will be like. Anyone interested to play some games?
@HARBiNG3R - 3 Nissa's Pilgrimage with only four Forest is a definite problem in the deck. As it is the first Nissa's Pilgrimage is great, the second is often a Sorcery-speed
Natural Connection, and the third is just fodder for Cathartic Reunion. I just don't see an alternative however. The other ramp spells are just not powerful enough.
@Thorcas - I did think about Key to the City while looking for artifacts to pair with Unlicensed Disintegration, but discarded the idea. First, Key is quite slow and mana intensive, and you want to spend the early turns casting ramp. Second, Key requires a target. This deck is not likely to have one. You could use it on an opponent's creature, but not every opponent runs creatures. The other benefits of Key (madness enabler, reach) are not relevant. If this deck reaches late-game it ought to win via one of the big creatures - it might take longer, but it should still win.
I considered Ever After during early deck construction, but eventually tossed out the idea. Instead of doing two things at the same time, I think it's better to concentrate on doing one. All the reanimation planeswalkers also have other uses, but Ever After / Necromantic Summons etc are very specialized. I think there's a deck to be made around them, but it probably shouldn't include ramp and should include more discard effects.
Also, my interest in this deck is beginning to wane; I don't feel like I can optimize it much more (if you are able to though, please share!). The only remaining question is Nissa vs. Reclamation Sage, but that's very matchup dependent. I will say that Rec Sage is often the difference between life and death, while Nissa is just a generic good card. On the other hand if the rest of your hand is blank, Nissa is way way better than Rec Sage. It's a metagame call.