Izzet Arcane Storm
Thanks to the YouTube Channel of the Bristol Pauper League, and in particular to one of their players ( Jack Staveacre), I've discovered this Izzet combo deck: https://mtgdecks.net/Pauper/izzet-storm-decklist-by-jack-staveacre-3053197
The goal of the deck is simple: have [[Goblin Electromancer]] on the board to discount all of your spells, play as much Arcane spells as possible to fill your GY, and then hit your opponent with a lethal [[Ire of Kaminari]].
As for the sideboard, which the decklist I've linked doesn't include since it was played in a bo1 tournament, I would go for something like this:
4 [[Pyroblast]]
3 [[Negate]]
3 [[Hydroblast]]
2 [[Cast into the Fire]]
2 [[Tectonic Hazard]]
1 [[Annul]]
What do you guys think of this deck? Could it be viable to play in a local LGS?