I’ve been playing Tomoharu Saito’s UR Flash deck a lot recently. I love. I also like the Dragon variant, but [scryfall]Rattlechains[/scryfall] and [scryfall]Dimensional Infiltrator[/scryfall] is where its at for me. There already was a blue-white version of this deck, which also seems powerful, but this time it gets a huge boost in a couple of very good cards (okay, one good, two I think might very well make it):

I’m not sure how to actually build this, but lets give it a try. I need a good base of creatures and spells, but I’m not sure I really want to play hard removal, because counters and tapping are probably very good with [scryfall]Niblis of Frost[/scryfall].

So, here’s one version:

[deck]
[creatures]
4 Rattlechains
4 Dimensional Infiltrator
4 Spell Queller
2 Selfless Soul
2 Bygone Bishop
4 Niblis of Frost
[/creatures]
[spells]
4 Clash of Wills
3 Grip of the Roil
2 Essence Flux
3 Spell Shrivel
4 Send to Sleep
[/spells]
[lands]
6 Island
6 Plains
4 Evolving Wilds
4 Port Town
4 Prairie Stream
[/lands]
[/deck]

No [scryfall]Reflector Mage[/scryfall]s might just be crazy…