That said, the reason we were willing to test out a higher complexity level in this set was more about the strong flavor tie to the world and its position in the Magic year (the last non-core set before rotation)
However, she managed to get the last laugh
Gwenom, Remorseless Got That Adrenaline Momentum As someone very much not up to speed on Spider-Man lore, I had no idea Gwenom was even a thing
The good news about Spellslinger decks is that many of the cards that trigger your payoffs also help you find them
Lastly, I think you can cut down your lands to say 37 and replace the 3 lands you cut with Talismans (Talisman of Dominance, Talisman of Hierarchy, Talisman of Progress), so that you can get Dakkon out a bit quicker
Given the more bland holo, the formatting differences, the lack of energy in the text, I would say that this test sheet - if real - predates the disco sheet