The idea: Mainly rely on 0/0 creatures, so I can use Mirrorweave as a kind of one-sided Wrath of God.
1. How does Doubling Season exactly work with Primordial Hydra's counter doubling ability?
2. Can I use Mirrorweave in response to that ability during my upkeep, making all my creatures double their counters?
So far the deck is kind of 'clumsy'... Please help me make it more consistent. The drawing potential from Novijen Sages is appetizing, but the guy costs a lot. I think I should focus more on keeping the Hydra alive and just stand back for a while, because of how well it pump itself.
What creature tutor could I use here? I got rid of Green Sun's Zenith because it kills the Hydra as it comes to play and I may remove Protean Hulk for the same reason.
I offer as a counter to the novigen sages a card called sage of fables. More mana, less counters, same cards, costs less to get started on the ground, though.
1. Primordial hydra checks the number of counters on it, and doubles those. Then doubling season sees counters being put on a permanent, and then doubles that number. I'm fairly certain that's how it works, though I may have my technical timing issues wrong.
2. I don't think you can do it fast enough, as you don't get priority before the beginning of your upkeep triggers happen. I could be wrong, however. I would check the rulings forum for this one and the first question. I'm sure someone there would be better than I for such things.
4. Your decks big problem is that it's kind of slow and there are some cards that just don't belong. Sporeback troll is a maybe, but protean hulk, doubling season (your guys will get huge anyways and the threat potential is spread across several cards already with what I suggested), steady progress, and maybe even coiling oracle don't belong here. mana acceleration and threat density will help a lot.
I do worry that the curve is a bit high, which can be a problem with the speed of the format. I was actually a fan of Skarrgan Pit-Skulk...cheap guy that you can pretty much play anytime, but can be a threat late in the game and still allows you to free up mana for counter backup. Aquastrand Spider is underwhelming, but still a decent option at 2 cmc. I also think Rune Snag should be included as your counter of choice (or Fuel for the Cause if you just want to be cute at the cost of efficiency).
I would probably up Plaxcaster Frogling and Cytoplast Root-Kin to 4x each, as those are probably the 2 best creatures in the deck. Not sure if you are looking for another finisher, but Vigor (while susceptible to removal) is a beating, especially here.
I remember using Vinelasher Kudzu as a growing threat that drops early. Consider Protean Hydra in tandem with either drawing Sage for great profit.
Personally I'd use Contagion Clasps over Steady Progress; three mana to four isn't that significat, even if one is a suprise. The Clasp also works as early defense, which I suspect you sorely need. Goes well with the aforementioned Thrummingbird. Or Kitchen Finks. He's a bit of an oddball for graft, but with Oran Rief it's an effective tank that slows down heavily aggressive decks with a source of counters.
I'd drop a few Cytoshapes, they're probably being a bit too fanciful... or Mirrorweaves. Six is a bit much, personally.
I wouldn't drop cytoshape in this deck. It's three mana, kill target creature very very dead. It's cool tech and a lot of folks won't remember it or how to deal with it. Otherwise, I'd test a pile of the suggestions already given.
I kind of gave up on using Novijen Sages or Sage of Fables. The cost is too high, the activated abilities a bit clumsy since I need to leave mana open for Frogling and counterspells. I felt Vigor slowed me down for the same reason.
In this version I am using 0/0 creatures only, because I hated killing my own creatures when the time to use Mirrorweave arose. I did check with some pro-players and it looks like Mirrorweave in response to Primordial Hydra's ability works.
Things to do: probably need to include Noble Hierarch and some sort of card draw!
Let me know what you think.
If you're going to run white, then path to exile should really be in here. Otherwise, I'm reasonably surprised that you're not just sticking with blue/green and green creatures. You'd get double use out of a card called oran rief, the vastwood. edit: sorry, already been mentioned, but still a good suggestion!
I might include Path depending on tests I'll do this weekend. Generally I don't fear creatures much - I can pretty much match what they drop and then beef it up with Graft, Thrummingbird, Mikaeus, Ajani etc. And secondly Mirrorweave works on guys with protection and shround, although you can't really compare it due to the cmc.
if you are going to keep the white you might consider juniper order ranger. together with the root-kin that is a heap o' counters, maybe better than ajani even . . . jace is kind of fun with doubling season, graft and proliferate, simic builds love drawing cards . . . hmmmm lorescale coatl anyone?