Flash + 4 g probe+ 4 street w.+ new mullingan= gg turn 1 ......80% covered (force w...misdirection..pact...veil)
It's funny because so many people respond to this idea with some deck they can't conceive of being beatable: Flash, Trini MUD, BDEV Delver, Tinker Combo, Channel Mirror etc. People have already been playing these decks, none of them is unbeatable.
This is a fun format where all the spells matter. It's exciting and engaging and there are plenty of decks to invent or reinvent. Don't knock it till you've tried it.