Notes & Combos
Fun deck, happy with the list. At times you can really struggle from missing the TCG/OCG support cards, not much we can do about that. Fydraulis Harmonia specifically is a big problem for the deck and is the culprit for most of the losses when going first. The endymion package would help insulate against it quite nicely.
Going second into any big combo board can be rough, I settled on going all in on the Mulcharmys with 3 of each Fuwalos and Purulia and they've been great, forcing halfboards worked out better than going deeper on the fairer 1-for-1 handtraps. Originally ran Dimension Shifter too for the same reason, but in practice it forces me to put up a halfboard too that they can just dismantle on their next turn.
Didn't miss not running Metamorphosis, I occasionally added 2-3 copies and they were fine. Sometimes it was win more, sometimes it was valuable extension. But an extension piece that doesn't do anything through Harmonia became a problem.