Let me tell you: Zhur-Taa Ancient is not a good card for commander.

I know, it's in the cut list. Problem with the cut list though is prioritising what to put in. Xenagos, God of Revels is one choice once BNG is released, but then so Mana Reflection . There is a big rework coming soon though.

Check my Mayael Deck, maybe you can find a nice card to replace Zhur-Taa Ancient

http://tappedout.net/mtg-decks/mayael-commander-25-10-12-1/

Great deck !

I would remove Reliquary Tower . Consider Illusionist's Bracers .

Illusionist's Bracers is something considered for the deck. The only reason I am not willing to put it in is because it makes Mayael far too big a target, although I love it that one of the biggest threats in the deck is a 2/3 blind elf. More and more I'm hard casting creatures because it's safer than setting up to use Mayael's ability.

As for Reliquary Tower , there are better lands, but with the amount of times I have been forced into drawing a stupid number of cards in the hope that I will have to discard a lot of good Mayael targets, Rel Tower is nice bit of utility. Yes I would rather play a dual land or something like Kessig Wolf Run as my land drop, but I'm never sad to see Rel Tower.

If we're going to get super streamlined, then the following cards could be considered sub-par:

• Storage lands ~ Yes, relatively early on they provide a reasonable dump for mana, but you should be using those turns to be dropping one of your 7 mana rocks or one of your 6 ramp spells. They're great if you've got a Doubling Season or proliferate effect on the table, but you don't run either in this list. Perhaps the filter lands would work here instead?

• Dragonlair Spider ~ Sure, 1/1 tokens are fun and all, and the card scales well in our multiplayer setting, but what purpose do they serve the deck? As far as sac outlets are concerned, you're not overwhelmed with options either in your deck or in your maybeboard, so this is a relatively easy cut. The reach is nice, but you have enough flying bodies to not miss this card.

• Darksteel Ingot ~ It's the mana rock that sticks around after wrath effects, but it only pushes you by one. If you're looking to truly explode out the block, you should consider other options here. You could also cut it altogether, considering the already excellent ramp and rock package you have; minus this card, you still have 48 mana generators in the deck.

• Day of Judgment ~ This has probably been suggested a couple of hundred times before, but this should be a Wrath of God , almost no question. The only reason to run DoJ over it is if you have multiple regeneration sources, and at the moment you only have Asceticism .

• Qasali Pridemage ~ It's nice recurrable removal with Sun Titan , but you aren't really running enough of a graveyard recursion engine to justify it over either more consistent removal or perhaps some more utility. The exalted is nice, but this deck has proven itself to be the kind of deck that quickly becomes an alpha strike machine, rather than a single swinger.

Here are my suggestions for a more streamlined deck. Budget is of course something of a consideration, but this is the EDH deck that you cherish the most, so I won't suggest budget options for the sake of it. Some of these cards paint you as an absolute threat, but your deck is always a threat - embrace that somewhat.

• Sylvan Library and/or Scroll Rack ~ The versatility of these cards is simply too good to miss out on, especially on a deck that looks to stack the library somewhat. Format staples for a reason, and you should consider both for the list.

• Tooth and Nail ~ It's a win-con in it's own right & allows you to react against threats at the table accordingly. Frankly, this deck needs this card.

• Spellbreaker Behemoth ~ Although your deck does not necessarily hard cast creatures enough to merit this card as much as say a Ruric Thar EDH deck would, this should still be in your list. You said it yourself in your change log that you've moved more to hard casting creatures because of how fast the deck is starting to move; this card facilitates and synergises with that approach to a great extent.

• Craterhoof Behemoth ~ Stupid card is stupid, win con is win con. It's overkill, but your deck loves playing lots of creatures, and this card loves hitting the battlefield when you have a lot of creatures.

• Lurking Predators ~ Your deck is over a third creatures, which gives this card a very good success rate. It's quite clumsy on yuor curve, but definitely worth a playtest at least.

I am uncertain on the signets in the deck. The 2 cost mana rocks are good because T2 ramp can build to a great late game. it is a fantastic addition to non green decks which lack better ramp, but in this green deck ramp can be much better. Dirt is better than rocks and the rampant growth effects are nicer and less disruptable.

If mana rocks are what you want, Thran Dynamo and other rocks which produce more than 2 mana are more worthwhile.

I don't really like Dragonlair Spider here. I like the card but it is just a 5/6 with some token making and you have no real way to utilisethe tokens past craterhoof. Avenger of Zendikar makes a an army instantly and might be better for chump blocking or for creating a lethal alpha strike.

With the utility that you have ingrained into the creatures in the deck I would suggest Birthing Pod to give incremental, nearly uncounterable board presence. I think it's worth a look.

How much card draw do you have in the deck? Does Reliquary Tower do enough to warrant it's slight weakening of your manabase?

You have some real nice sideboard cards and some good choices to keep out the deck. Yosei, the Morning Star seems to me like a nice choice for the deck, but I may be biased since I quite like the card. On the other hand this deck has enough removal to make Chaos Warp irrelevant, and is consistent enough to make Gruul Ragebeast and Blazing Archon unnecessary.

I don't love Summoner's Pact , it is a tutor for sure, and is powerful and can get some nice targets, but I think Worldly Tutor is nicer and honestly some of your stronger creatures, and more toolbox effects are not in green.

Cards which you may want to consider for the future: Scourge of Kher Ridges , Bogardan Hellkite and Karmic Guide

I just think they all provide a strong unique effect that nothing in the deck currently provides

I think if I replace Summoner's Pact it will most likely be Chord of Calling that replaces it, especially with the recent reprint.

Dragonlair Spider is a card that I really like, I admit it doesn't fit this deck fantastically and Avenger of Zendikar is a better choice.

I think the signets time in the deck may reach it's end soon, with them being replaced with Thran Dynamo and two of the following three: Wood Elves , Search for Tomorrow or Mirari's Wake .

Scourge of Kher Ridges is the most likely of the three to come in.

Birthing Pod could lead to some great plays in the deck, but it is something which will be considered slightly.

I agree that Mirari's Wake , Thran Dynamo Chord of Calling are well worth the slots over the signets.

I hoper I have been of help. Birthing Pod is a peculiar card. I wasn't a big fan until I played it. It feels like Survival of the Fittest . It gives you a number of options which green rarely gets.

And no love for the Worldly Tutor ? Okay.

Its not that there isn't love for Worldly Tutor , I just like the other tutors a bit more. Yes it covers the other colours, but a lot of what I search for is in green otherwise its dig with mayael.

Next big change probably has to include original duals though. That will break the bank a little. Well that and the fetches. Not sure how many fetches I'd run if any. My ramp package is relatively solid.

your fixing is good yeahI just like the synergy with worldy tutor and mayael, getting an uncountable thing on top of your library with mayael

I didn't look at your deck.

+1 for name.