(Elven Chorus)

So this deck operates on a few simple concepts:

-get Nyxbloom Ancient in play to amplify your tap-based mana sources (note: this highly benefits Circle of Dreams Druid, Nykthos, Shrine to Nyx, Castle Garenbrig, Cascading Cataracts, Basalt Monolith, etc)

-get Akroma's Memorial, etc, in play to give The Aeves haste and trample (and flying, etc) for a wincon attack

-get Beast Whisperer, Glimpse of Nature, etc, in play to draw cards when you cast creature spells, fueling your storm.

Kamahl's Druidic Vow needs extra consideration, as it not only fills our battlefield with any kind of lands it finds, but at least some of the rest it finds will likely be non-legendary artifact creatures that we want in our grave for a quick recall and free cast.  It makes for a great option the turn before we're ready to go all out for a storm.

Grothama, All-Devouring fits nicely in this deck... cast it, then attack and have as many creatures fight Grothama as possible, killing it, then draw a ton of cards, and likely send a bunch of your creatures to the grave for a future mass recursion spell (so pick your Grothama-killers wisely, dealing 7 damage first, then finish it with your biggest creature to maximize your card draw).  We should be able to draw 10+ cards most times.

Nature's Resurgence is one of those cards that you just gotta hope it helps you more than your opponents.  So timing it is obviously key, and unless desperate, we primarily plan to use this right after saccing all our selected creatures, allowing this to boost how many we can potentially cast from our hand for free.  In such a case, we're likely to have a lot more creatures in our grave for this to trigger off of, especially earlier in games.  Plus we have a few ways to remove cards/creatures from opponents' graveyards.  So this is not the ideal draw option, but it's on the borderline of cards that are worth including.  Hopefully they don't draw a counter spell or something.

Compost is a nice passive draw option, because in most 4+ player EDH games there will undoubtedly be someone playing with some black graveyard interaction.  But it's also probably something you'll decide to run based on your playgroup, and what decks you play against most often.  If no one plays much black grave interaction, then maybe this isn't the option for you.  My group has plenty.

Gigantomancer... yeah, it's expensive to drop, but this deck can do it pretty easy with all the mana dorks and creature cost reducers, and it's a game changer once it's in play.  For 1cc it can beef itself up, or any other small creatures we have in play, etc.  Also, Aeve is only 2/2 (then gets +1/+1 counters), so this can effectively give each Aeve copy +5/+5 for 1cc, after blockers have been chosen.  If only they also got trample, then this would be a no-brainer to include, but as is, without the added benefit of trample, it's a borderline option IMHO.  On that note, Creeperhulk does similar, effectively giving Aeve/copies +3/+3 for 2cc, but they also get trample, which makes it get the nod over Gigantomancer overall, even though it costs more to use and doesn't pump them up as much... if our opponents can keep putting out weenie blockers, then having big creatures without trample is rather useless, and probably means less attacking, more blocking, and not winning (at least not as fast).  Giving creatures trample is one of the primary reasons Akroma's Memorial is in the deck (that, and haste and flying, are all desperately needed in this deck).

My vote is to include every mana dork that costs 1cc and taps for 1cc (usually green), as well as every artifact creature mana dork that costs 3cc or less.  All of them can be used for storms, but the artifact creatures have the added benefit of being solid options to sac and re-cast for free once you have the right cards in play/hand.

Being annoying... that's what Lodestone Golem, Damping Engine, and Chalice of the Void can all do to your opponents, if you want.  Damping Engine feeds the grave for recursion spells, so its drawback is kinda beneficial to us.  Chalice of the Void is probably going to be aimed at a specific casting cost, based entirely on your specific build, but it can hurt you enough to think twice about it.  Lodestone Golem is only a borderline option because of that 4cc cost, and the fact it'll still hurt us on some of our spells we intend to storm with... making our spells cost more is counterproductive to storming, buuuut, we may not be too affected by it anyway, with all the other ramp running wild in the deck... so do as you wish.  But all three cards can slide into this build and make sense, and slow our opponents, which benefits our potential need for just one more turn...

Experiment One is pretty obvious here... only costs 1 green for a great early storm spell, ooze creature type benefits Aeve on her cast, then it has evolve, which benefits from casting all your other storm-building creatures, and then benefits big when Aeve and her copies join the party.  There's just waaay too much value in that card not to put it in.

I consider Crashing Drawbridge as a must-include in this deck, because the ability to give all your creatures haste after storm brewing and casting Aeve could be the difference between a win and a board wipe.  While Akroma's Memorial is an awesome card in general, it's also primarily in here for giving creatures haste and trample.  Crashing Drawbridge does half of that, but as a 2cc artifact creature that we can use in a storm in a pinch.

Just saying, Castle Garenbrig is really fun.. while tapping four lands and it to create six mana is fine by itself (+1 in the wash), once Mana Reflection or Nyxbloom Ancient are out, it just gets a little absurd... tapping two forests and it would normally produce six or nine green mana with either of those out, but using Garenbrig's second ability we can make those three land-taps turn into 12 or 18 mana.  Not bad little castle, not bad.

Lair of the Hydra is such an underrated card... green pumps out land and/or ramp so fast that after any board wipe you'll be sitting there with Lair of the Hydra as one of the biggest creatures on tap, providing you with ample non-flying attacking/blocking ability.  I've also found it rather helpful as a great target for spells that draw lots of cards equal to your biggest creature's power... once made it 11/11, attacked, then sacced it to Life's Legacy, drawing 11 cards, which fueled my winning storm the next turn.  Very handy little land... and tbh this man-land set from AFR is quite powerful! 

Metallic Mimic is a convenient option to include... whether cast before or during our storm, we're choosing ooze as the creature type, as that alone will trigger The Aeves to enter with an extra +1/+1 counter each, then the Mimic will add another round of +1/+1 counters for its own triggers.  Plus it's an ideal option to cast for free in our storm.  Plenty of value and reason to consider using it.