By fast mana, I mean methods to get ahead of the curve early in the game, most likely on turn 1
Delirium At the beginning of your end step, if there are four or more card types among cards in your graveyard, transform Autumnal Gloom
US locations typically provide optimal performance for Scryfall
Repeatable token effects are the best, and for that we have: Titania, Natures ForceTitania, Natures Force Rendmaw, Creaking NestRendmaw, Creaking Nest Grist, the Hunger TideGrist, the Hunger Tide Giant AdephageGiant Adephage Formless GenesisFormless Genesis Demonic CovenantDemonic Covenant Crawling SensationCrawling Sensation One-time effects are good too, like: Hornet QueenHornet Queen Ishkanah, GrafwidowIshkanah, Grafwidow ArachnogenesisArachnogenesis And lets not forget our other important theme, which is card types
Instead, swap them out for additional copies of Peter Pan Lost Boy Leader and Kit Cloudkicker