The deck is designed to play
Hazoret's Undying Fury(HUF), copy it, then let the copy resolve creating more copies with spells from the deck. The rituals and Seething Song can be copied to accelerate into an early of HUF and you proceed to cast every spell in the deck, using Elixir of Immortality to recycle and do it repeatedly. Grapeshot and Aetherflux Reservoir are your two win conditions, with Baral's Expertise to enable you to play the artifacts from your hand during the loop. One copy of HUF is in the sideboard so you can find it with Burning Wish, that way HUF won't exile all other copies of itself. I'm considering Epic Experiment, though it can't cast Elixir of Immortality. It can at least fit in the sideboard so I'll have more options for Burning Wish.
With the addition of Bonus Round, one of the new strategies involves casting it and following it with Manamorphose then using the mana from the copy to cast a copy spell, followed by more copy spells until you draw what you need. I realize this may already work with Pyromancer Ascension, but this way doesn’t require as much setup.
During the loop, don’t cast draw spells unless absolutely necessary if Elixir of Immortality is not on the battlefield already because you might draw it, which will leave you needing to let everything resolve before you can cast it, breaking the loop. It hurts more if the Grapeshot comes up too early.
I added a sideboard with 4 mana copy spells to work around Eidolon of the Great Revel, which a friend plays effectively against me. This isn’t a competitive sideboard for the deck, just something I threw together to deal with the players I personally play against. Lightning Bolt however will likely be staying because it’s necessary removal that can also be an alternate win condition in case Grapeshot is somehow removed.
The deck took a hit when Gitaxian Probe was banned, but Expansion / Explosion fills the gap nicely. It may not copy HUF, but it can copy Manamorphose to dig through the deck, and it can end games if you can build up enough mana from a Manamorphose copying spree with Bonus Round or active Pyromancer Ascension.
