What about Mana Crypt, Mana Vault, Voltaic Key, Mox Diamond, Ancient Tomb?

Also, if you play the correct colours, Magister Sphinx is a must in commander...Inkmoth Nexus is great as well with all the equipment you have there, especially cranial plating.

Have you considered Mycosynth Lattice and stuff like Vandalblast, Karn, Silver Golem and Powder Keg?

Thank you for your input, Winterblast! As for Mana Crypt, Mana Vault, and Ancient Tomb, Ive noticed that I need more sources that produce colors. Im more in the mode of adding Boros Signet and Orzhov Signet. However, Ill probably add Ancient Tomb. As much as I love Voltaic Key, I do know if this is the deck for it. I feel like I can use Clock of Omens for untapping shenanigans with my equipment. Mox Diamond doesnt synergize with graveyard cycling, since it kills itself if I dont have a land. My assessment could be wrong though. Even though this deck reanimates, it is not a reanimator deck, where I believe Magister Sphinx really shines. Lets be honest; I never actually want to hard cast this thing. Magister Sphinx is a stable Esper card though. Inkmoth Nexus should and will be in the deck. I just have to play it more and make the cut. Mycosynth Lattice makes me uneasy. Im not a fan of fixing my opponents mana. Also, I dont have enough counterspell back more Mycosynth Lattice/Vandalblast combo. However, I should have a sweeper like Cataclysmic Gearhulk or Nevinyrral's Disk. Im thinking about adding Feldon of the Third Path, Metalwork Colossus, and Solemn Simulacrum, since good cards are good.

As for the mana artifacts, they are all for speed. Therefore voltaic key is more useful than clock of omens, although you might play them both if you have artifacts that you might want to use more than twice, such as Sensei's Divining Top.

Magister Sphinx is for Goblin Welder and Daretti...you have other cards for 5, 6, 7 mana in the deck which are just as awful to cast fomr your hand and some aren't even artifacts.

The point of Mycosynth lattice is simply to give certain cards more targets. For example Karn, Silver Golem becomes a land destroyer for , Dack Fayden could steal any permanent on the board, Powder Keg destroys all lands for and your commander gets +1/+0 for every permanent you have...and if you worry about helping the opponent, i'd rather have a problem with Arcane Denial.

I don't see Cataclysmic Gearhulk as such a strong card. It doesn't destroy lands and planeswalkers, which is what made Cataclysm so awesome. In most situations the problematic pieces in play are distributed among more players and permanent types and you will more often than not hold the gearhulk back because the situation isn't right. Nevinyrral's Disk is something you don't want to see with such a deck, neither on your side not on your opponent's, with many artifacts on your side you rather want to blast the lands away and keep the artifacts. A combination of Armageddon, Ravages of War, maybe Sunder or Boom/Bust and artifact destruction to remove opponent's mana artifacts does a much better job here.

With all your equipment here, I do miss Umezawa's Jitte, the best equipment ever made...with your equipment searchers and the guy that makes equip cost 0 Batterskull is also amazing. In the new commander set (Atraxa deck) there's also Duelist's Heritage, which is a great piece with both commanders. I am currently building something with these two as well and I thought this is a really great card for it.

Some thoughts:
Swords to Plowshares > Path to Exile if you don't play both
Vindicate > Anguished Unmaking because it can target lands too
Reanimate or Animate Dead > Beacon of Unrest ...reanimating an artifact is not worth the extra mana

Ill concede on your point regarding Magister Sphinx. I planned on cheating some of the higher end cards into play. Mycosynth Lattice and Arcane Denial are completely different in terms of helping the opponent. However, Ill consider it going forward. Im probably going to catch some heat for this, but I always cut Umezawa's Jitte from my EDH decks. Jitte is the best equipment in the game, no argument there. However anytime I have it alone, I would rather it be something that has immediate impact or offers protection. Jitte and Nahiri +2 is cute though for stacking charges. Batterskull should just be in the deck somewhere.Youre probably right about Cata-Gearhulk and Disk. However, Ive been desperately trying to avoid building yet another deck that blows up lands. Im gonna play this more and if I feel like its underperforming, Ill throw in Armageddon. Cataclysm is a part of my top ten favorite cards, since I dont play often. Speaking of Duelist's Heritage, this deck lacks double strike. How do you feel about Grappling Hook? Heritage is possibly just better, even if I cant recur it.Swords is actually already in the deck over Path. Im glad you caught that. Is the ability to target lands more valuable that instant speed and exile? If I could, Id play them both. Reanimate will replace Beacon. I valued the ability to recast it Beacon. Realistically, Im only going to cast it once, maybe twice if Im lucky.

I see your point about Jitte...it doesn't protect the equipped creature, that's true. I see Jitte more as a removal for nasty small creatures. There are so many stupid creatures with global effects for one or two mana that would be really easy to kill but sometimes no one on the table is able to remove them and then they ruin the game for quite a while.

The thing with mass LD is that most decks can't cope with it AT ALL, unless they have it in their strategy too or play a similar amount of nonland manasources as we do. We have a Teferi, Temporal Archmage deck in our playgroup here - the shop owner plays this one - which almost always wins if the game takes long. It's not fast, it also runs few counterspells but it has a very sturdy manabase in the mid and late game and then there's not much you can do to disrupt it. If you don't play against such a deck you will always destroy the opponents completely with Armageddon, there's no chance a basic midrange aggro deck can deal with it if it resolves.

Grappling Hook is a bit expensive if you can't put it into play with an ability and reduce the equip costs. The awesome aspect of duelists heritage is that it triggers whenever ANY creature attacks, not just your own! You can use it politically in your opponents' attacks when they attack someone other than you.

I don't know how often you want to target single lands with a spell? If you can fit them in the deck I would also play both. I would prefer the possibility for land destruction over instant speed though, because attacking the mana base often does much damage to someone's plans. I often see that with my Augustin's $t4ks (4000$ Solution/Stax), when I make everything cost only or more...doesn't look like much but you can see how one mana more or less will have a huge impact on most people's strategies and plans.