Yidris spell slinger deck. Once Yidris connects, cast as many spells as possible. You can probably end up winning by just killing any threats and swinging with Yidris, but there's also the possibility of storming out.

The reasoning behind the cards:

Baral, Curious Homunculus, Goblin Electromancer and Arcane Melee: These cards lower the cost of instants and sorceries, which are the backbone of the deck. They make it easier to build up long cascade chains.

Guttersnipe, Sphinx-Bone Wand, Scroll of the Masters and Docent of Perfection: These cards reward me for slinging spells, and can become win conditions if left unanswered.

Galvanoth, Possibility Storm, Spellweaver Volute, Rashmi, Grinning Ignus, Rishkar's Expertise, Kess, Oona's Grace and Slaughter: These cards help me squeeze as many storm triggers as possible out of a single turn. Several of them also allow me to recur cards from my graveyard.

Eye of the Storm: One of the deck's win conditions. I won't let it hit the field unless I'm certain I can win with it immediately, mainly by storming out with cantrips and Grapeshot/Tendrils of Agony.

Aqueous Form: This card not only ensures that Yidris will connect, it allows me to check the top of my library to see if the card there is one I want to cast.