[EDH] Eligeth, Goddess of the Sphinxes (acolyte of Kruphix) (EDH / Commander)

Do you ever wanted to be submerged by value, at low cost (both cmc and $$)??
Do you ever want to draw yourself out while many sphinxes watch your battlefield?
Now, with the strongest color of Magic you can! Green Sphinxes! (ahahaha)

This is a budget mono-blue Eligeth Scry/Sphinxes value deck that splashes green for the consistency and the ramp that the color provides. The deck power is average (7/10), it has a strong focus, speed, consistency, and some explosive win conditions, but it lacks some removals (if you want you can add pongify and rapid hybridization) and the cmc of the non-ramp non-value spell is quite high.

As the choice of the partner for Eligeth, Kydele is the perfect fit, because she can provide the perfect consistency of casting Eligeth on turn 4 and also provide a huge ramp for later turns. I firstly tried to build Eligeth+Siani or Eligeth+Esior, but Kydele is way better and cannot be replaced. Thrasios is not worth it as a commander, maybe he can be added in the 99 (i.e. 98 ). The deck has 11 turn-2 mana ramps, and 2 land-mana ramps. A good starting hand should have at least 3-4 lands and 1 mana ramp, so that the turns can be:

1. Land
2. Land, mana ramp
3. Land, Kydele
4. Land, Eligeth (tapping Kydele)

As I tested the deck, this scenario happened about 87% of the time, using just the free Mulligan.
From that on, you just draw and dump your hand.
In the budget version of the deck, tapped and single-color lands may be a little annoying, and in my games I sometimes lacked blue mana (while having tons of colorless mana). So if you can add the dual lands in the sideboard, and the fetches + Mycosynth or the Orrery, the deck speed will increase a lot. For these reasons, this is also one of the Really Really few decks that doesn't want Sol Ring (and Mana Crypt/Vault), because we already have too much colorless mana!

A nice card to add is also Worldly Tutor (obtainable from commander green, with also Sylvan Library which is a good addition to the deck!!)

Going through the sections of the deck, we have 10 low-cmc scrying cards (I mean... CARDS DRAW cards!). Casting a 1$ ancestral recall (preordain and serum visions) has no price, but also Nissa and Jace planeswalkers are amazing, drawing tons of cards! They do not pose a threat to the table, so they will often stick to the battlefield for a long time. And you also have a lot of flyers and sphinxes to protect them!

About Flyers, they fit well with the theme of the deck, and they synergize effectively with cards like Siani and Warden of Evos Isle. They also generally have scry or card draw attached to them, and they pose a threat to opponents life total. Loyal drake is a really good card: with Kydele in play is "every turn draw 1 card and add 1 mana, for free; because yes", attached to a 2/2 flying body. Thryx and Warden provide "mana ramp/reduction" to every creature in the deck and also some others. Kefnet is an amazing blocker to protect e.g. the planeswalkers, and has a mana sink ability with only 1 blue mana required. Siren Stormtamer provides protection for the commanders.
About that, one issue of this deck is that, to work properly, it needs Eligeth (or better both commanders) to be on the battlefield at all times. But if this lets you think that the deck is not functional or too dreamy to play, is not true: I tested the deck, and it is a blast and super fun to play. In one game I played, there were 8 board wipes in 6 turns (from turn 6 to 12), and I ended up casting both my commanders 4 times each (8 times total): still, I managed to play satisfactorily, and, even if the wraths were annoying, I managed to draw my entire deck and win.

Regarding the Sphinxes, the choice is a personal one: I could have gone for an Eldrazi, or Big-Cmc artifacts, or Blue-Tron deck, but I preferred a more niche, funny, and unexpected alternative on this scry-draw-ramp-dump deck. The Sphinxes package is not super strong, and probably it is not perfectly fitted, but it synergizes well with the draw-and-play-big-cmc-stuff. Moreover, Sphinx of the Second Sun is super exciting to play, and, if you manage to put Unesh on the battlefield, the sphinxes value is really strong. This is the reason why this deck likes the Worldly tutor: to find these cards that act as secondary commanders (along with Siani and Esior).
But the sphinxes package is not to be taken lightly either! Ormos is not to be underestimated as win condition (also to help you not to die by decking out), and it has a really strong card draw ability. Sphinx of Foresight and Prognostic Sphinx are really fitted in the deck, and the other Sphinxes have good abilities and are good beaters too. Atemisis is a decent and playable win condition as well.

The control package is good enough for the power tier, and some cards have the scry attached to them. Some of the cards of this section were borrowed from mono-u Tron. Forbid is a really interesting card: when you have a really huge hand (almost always with this deck), as long as you have blue mana to cast it, it is an infinite counterspell. But to be honest with you, generally I found myself with not many (blue) mana at the end of my turn for the counterspell package of this deck, probably because I liked to draw 20+ card each turn, for the fun :)

The Payoff section contains some colorless cards: Artisan is a good recursion card and a good beater, and it is practically free to play. Caged Sun helps you with the lack of blue mana issue, while also pumping the team (and coming down practically for free as well). The Psychosis Crawler is the most competitive win condition: with this deck you can draw 10/20+ cards per turn, so if you set up your strategy correctly, you can easily win in 1 turn.

The Draw section is important for the consistency of the deck: you could ask "why do I need more cards draw in this deck?", but generally, things do not go always as expected. Rites of flourishing, even if it is a card that PROPORTIONALLY helps way much more your opponents than yourself (because you should already have infinite mana and card draw with this deck), it's a really good friend to have when opponents are targetting you or wrathing every turn. It helps you catch back and mana to keep casting your commanders (they are 2, and they are expensive). Teferi's Ageless Insight is the golden bomb of this deck: take everything amazing you do, and multiply it by 2! Serum Visions is a 1 mana draw 6 add 6 colorless mana!! And Ormos is "pay 3, discard 3, draw 10 cards"!!
Teferi's Puzzle Box instead is a good tempo play: if you have Kydele on the battlefield, it can add tons of mana every turn; it disrupts enemies' strategy; let you cycle through your deck to recover from bad situations.

The flyers, the Sphinxes, and the Draw sections of the deck work even without the commanders in play, and this is really important for a straight ride of your game if you happened to be targetted.