Myra will give us quite a show as we repeat our Storm spells and Draw all the cards!
Setup the Tents
This is our ramp package. Sol Ring and Fire Diamond + Sky Diamond
because Sol Ring and Diamonds, Thoughtvessel for that no maximum hand size, and Storm-Kiln Artist because we will be casting and copying a LOT of spells.
Put On a Show
Draconian Gate-Bot, Rad Rascal, Seasoned Buttoneer will all open an attraction for us. Myra the Magnificent will do a fantastic job of opening attractions, especially when we move on...
The Show MUST Go On
Brainstorm, Frantic Search, Opt, Thrill of Possibility will cast spells and draw cards at instant speed if Myra becomes a target. Faithless Looting, Ponder, Preordain, Thoughtcast, Windfall will help us keep fresh cards in our hand and get some more triggers off Myra. Symmetry Matrix can help us draw some more cards when most of our creatures enter. Kasmina, Enigmatic Mentor and The Royal Scions will help us move some spells into the graveyard where the real fun can begin.
ENCORE!
This is where the show really comes together and we start to truly win! Most of these spells can be cast from hand first, but to really enjoy them, I suggest pitching them to the graveyard. From the graveyard we can attach them to our attractions. 1 attraction is possible to win with, 2 is guaranteed. First lets look at what we have to work with: Brain Freeze can clear an opponents deck, careful to choose who to target (not the Meren player...); Empty the Warrens can build an army for us and we can empower them with Haze of Rage; Galvanic Relay can clear our deck and find us key pieces; Grapeshot is a very tiny, but fun little pinger. Those are all storm cards, and keep in mind, they would be cast when you visit the attraction they are tied to, so how do we build our Storm count? The most ridiculous card Command Performance. The above can be mixed and matched however you'd like on the attractions, just use Power Conduit to remove the Midway Counter and pop another spell onto the attraction. The only 2 that NEED to be separated are Command Performance and Expropriate. I'll explain, but we need some math...
Roll the Dice
So here's our setup: We have 2 attractions, if we roll, for example a 4,5,6 we get to cast Command Performance on the other, if we roll a 2,3,6 we can cast Expropriate. So if we roll a 4 or 5 we can and will roll again, if we roll a 2 or 3 we stop rolling and finish our turn but we are GUARANTEED at least 1 turn, maybe more if our opponents don't let us take their toys. If we roll a 6 we get to do both. We mitigate the chances of rolling a 1 by rolling multiple dice. So starting we have a 16% chance of rolling a 1 and being done. What if we have 2 dice? 4 dice?
% of rolling a 6
2d6 = 30%
3d6 = 42%
4d6 = 51%
% of rolling a 2-6 (which would keep us going either on extra turns or just rolling)
1d6 = 83.33%
2d6 = 97.22%
3d6 = 99.54%
4d6 = 99.92%
So who can help us roll all those dice? Barbarian Class, Pixie Guide, Wyll, Blade of Frontiers will all statically put an extra dice on us, Monitor Monitor will let us add an extra dice once per turn if we need it. Bamboozling Beeble can let us reroll if for some reason we manage to whiff and get all 1s. If that's you, then... why are you playing this deck? But, we're doing all this, who are we here to impress? The other players? pffft! no!
Time to Wow the Crowd
Artificer Class can help us create extra attractions, should we want some. Crackling Drake will grow as we attach more spells to the attactions. Deekah, Fractal Theorist, Saheeli, Sublime Artificer, Zaffai, Thunder Conductor can all create tokens each spell we cast (and we do cast the ones on our attractions). Passionate Archaeologist, Ral, Storm Conduit, Sorcerer Class can all hit our opponents just from us casting multiple spells. Prismari Apprentice and Uvilda, Dean of Perfection
can all grow from us casting our spells, I would recommend running the flip side for Nassari, Dean of Expression. And our biggest hype-man in the crowd is Veyran, Voice of Duality who will create double triggers from our spell casts! So we're big and loud now, how does the crowd respond?
Standing Ovation
Jace, Wielder of Mysteries and Laboratory Maniac would love to see us clear our libraries (would not be too hard, and I didn't even include the Draw Attraction). Mechanized Production can be thrown onto an attraction or a Sol Ring to produce more mana, and if ignored, can win us the game. But these are key pieces and attractions holding Midway Counters are key pieces. How can we protect them?
Rejected
Since our attractions will largely be targeted by spells, we will run (probably an absurd # of counterspells with Assert Authority, Calculated Dismissal, Cancel, Counterflux, Counterspell, Cryptic Command, Disrupt, Ionize, Keep Safe, Memory Lapse, and Muddle the Mixture. Tamiyo, the Moon Sage can help us keep our spells and permanents from falling off the board if we can get her to her -8 Ability and get the emblems. Inundate and Temporal Fissure could both be attached to attractions, but I don't believe they'd be necessary to grant us a win.
Attractions
So I selected these with these specific lights on the sides. I use 2,3,6 for Bumper Cars + Fortune Teller + Pick-a-Beeble
2,5,6 for Storybook Ride. 4,5,6 for Drop Tower+Ferris Wheel+Kiddie Coaster+Roller Coaster+Spinny Ride. 4,6 for Trash Bin