Yeah lotus bloom is definitely something that I forgot and should be in the deck

The genesis is another way for the deck to put omniscience in your hand, so assuming that you're going down that route you can save a 0 drop rock for it and then play the rock

no temporal mastery + mystical tutor FeelsBadMan

no temporal mastery + mystical tutor FeelsBadMan

Yeah Asyko's points are correct, and temporal mastery is also really hard to cast from a mystical tutor since the the turn you're winning you will cascade past it. That combo is cute, and doesn't fit into every deck.

Any thoughts on Aetherflux Reservoir, seems silly, but in every storm variant can gain a million life and a lot of the time is more reliable for a kill than Tendrils of Agony.

Aetherfulx isn't silly, it may have a place in the deck. The reason I have tendrils in over it at the moment is that tendrils works after you've generated storm, where as reservoir requires for it to already have been in play at the start of your storm turn for it to be at maximum efficiency. With tendrils, you can draw it while going off, and you don't need to commit your mana to anything.

I'll make a primer on Yidris and link it in the description once the commanders come out and I get more play testing of it done.

I personally would have both Tendrils of Agony and Aetherflux Reservoir in the deck, never cut tendrils xP. How many drills? Tendrils

I love Waste Not too dont get me wrong but do you think the deck has enough wheel effect to make it work? Or are you fairly certain that your chances to cascade into them are high enough and that it will stop your opponents from casting wheels of their own? Also, may i suggest Savage Beating?

Bear Umbra and Sword of Feast and Famine also feel like must haves to me.

I'm not sure I understand the first part of your question. Yes, I think that there are enough wheels to make waste not work, the deck gets to run every efficient wheel, and waste not is taking the place of a mana rock at the moment. I'm not really worried about other players casting wheels of their own, and am not sure how that fits into the discussion of waste not, as it's more of a value card in the list rather than something to be tutored for and played around.

I believe that savage beatings is over costed for what it does, and I would rather play a five mana time warp effect if I was looking for something similar. The reason I don't run either, is that the deck's focus is efficiency, with or without Yidris, so that if the table is constantly removing your commander, you still are a threat through the other means you have of winning: ad naus, doomsday, wheel/thief, playing storm normally, etc. The cards that come at the exception to this, things that are only good with Yidris trigger: lotus, visions, wheel of fate, have a very high impact when they are relevant, unlike savage beatings. Also, being a storm player, stax is already a concern, and feeding into them by making a deck that revolves around the abuse of the number of cascades your spells have only makes this a far larger problem.

Similarly to savage beatings, bear umbra and sword of feast and famine also make the deck too commander centric, and remove the ability to function at a high capacity without Yidris. Playing either of them is somewhat tricky, the goal is to land Yidris turn two or three, swing with him, and then end the game at that point. You are never afforded the opportunity which you can really cast them other than the turn that you are attempting to win, making a large mana investment, probably all of your mana, leaving your win weak to disruption. And the untap triggers that you would get from these cards would only serve to utap the mana that you used to cast them. The double green in umbra is a slight concern since you should be focusing on triple black for DD or four islands for double gush. Cascading into umbra or sword is pretty bad, and cascading for a large number is generally worse than cascading for 1 or 0 as the deck is built around cascading for the smaller values.

If you want a more in depth and back and forth discussion about the card choices I'm writing something up and I'll link it in the description when it's completed here in the next week or so.

Thanks for the suggestions.

What i meant is that if you have a waste not in play your opponents might not be too eager to wheel. So they might not do it at all wich could stall their plans for a turn or two. And if they risk it they could give you all the value you need to win the game.

Small question, why do you run Dimir Signet Over Talisman of Dominance? Does the color fixing come up much over the ability to tap it for free?

Yes the color fixing is much more important. It gives your colorless mana outlets ways to tap for Yidris. So a turn one sol ring/crypt into a signet means a turn two Yidris.

Okay, thanks for the reply. seems very color intensive.

I like it.

Hey - have you tried Dramatic Reversal?

Running so many artifacts it seems like it should have a slot - I've tested in a similar build and it works wonders

I have not tested it, but I do not think that it would be very good here. 3 of our artifacts sac themselves to give mana, so there are only really 9 artifacts that would untap with it, and most of the time the mana you are getting is going to be colorless. It gains added value if there is a creature worth untapping in play, like a bloom tender, though having a creature in play isn't something that the deck really plans on. I think hurkyl's fills a similar slot to it, and hurkyl's adds storm count and can act as removal for the stax player.

Feel free to test it out and report any finding.