main combo: Spellweaver Helix + Strionic Resonator
. I feel Spellweaver Helix takes the best advantage of Strionic Resonator's abilities as both of its abilities are triggered (both imprint, and the copy ability). By copying the imprint trigger, we can imprint 4 cards on the helix (or more with multiple resonators), and casting any of those cards will cause all the others that are imprinted on it to be copied, which can in turn be doubled with the resonator.
I call this combo the "strionic helix" combo, and the possibilities for it are almost endless, so it was hard to come up with a deck for it.
anyways, despite its shortcomings, this deck is crazy fun to play, and any of you Johnnies out there looking for a cool combo to mess around with might enjoy this. Like I said, the combo has almost unlimited potential (all you need is sorceries and those two artifacts), so steal it to your heart's content, and post what you come up with! I'm curious to see how other people use Strionic Helix.
For my part, I decided Cycling would be my best friend. Though the deck originally used Cruel Ultimatum and self discard like Faithless Looting, I think things like Stir the Sands, or Slice and Dice that have a useful effect when cycled, and can then be copied later by a helix make the deck much more efficient (and give it some stalling ability against creatures). Because so many good cycling cards have come out since I made this deck originally, this strategy seems really strong, even if I stick to Modern's set list instead of coing full Casual.
I noticed also that some fun Commanders have shown up that would be great with this deck. Though I don't plan to make a Commander version of this deck, I do think Veyran, Voice of Duality in particular would be insane with this combo.