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2 years ago I run a deck with a similar idea, and I'd suggest looking for Sorcerer Class and View from Above Sorcerer Class goes well with Jeskai Ascendancy, functionally giving you infinite mana for your instants and sorceries, and View from Above keeps returning to your hand, so you can keep casting it and triggering Prowess as long as you have the mana and a white permanent

Each of these covers some pretty fundamental ground, and if youre playing in a precon-only meta, you cant go wrong with any one of these

With Lightning Helix, you get Lightning Bolt with white lifegain, and its so, so good

I look forward to playing it soon

Not the best setup

No one but the Zmey