Zirda Combo (Standard)

I designed this plan and then finished the decklist with the list SaffronOlive presented (https://www.mtggoldfish.com/articles/instant-deck-tech-zirda-combos-standard).

Step 1: Cast mana dork that produces at least 2 mana (Incubation Druid or Faeburrow Elder). Incubation Druid has to be adapted or there has to be a Kinnan, Bonder Prodigy or a Leyline of Abundance in play. You can also get one with Granted (Fae of Wishes 's adventure) for Neoform and then casting Fae of Wishes and sacrificing it to get Faeburrow Elder with the Neoform.

Step 2: Cast Zirda, the Dawnwaker and one of the untap enchantments (maindeck High Alert, but there is a Gauntlets of Light in the sideboard to fetch with Granted). This will give you infinite mana.
Note: You do not need to cast Zirda if there are enough Leyline of Abundance and Kinnan, Bonder Prodigy (or some other possibility) to make you mana dork tap for 4 or 5 mana (depending on if you have Gauntlets of Light or High Alert).
Note 2: If you use the Gauntlets of Light to combo off, Biomancer's Familiar reduces the cost just like Zirda, the Dawnwaker would.

Step 3: Cast Kenrith, the Returned King or Nylea, Keen-Eyed, and draw your library with their ability. You can find Nylea, Keen-Eyed with Kinnan, Bonder Prodigy once you have infinite mana, with Finale of Devastation from the sideboard with Granted or with Neoform as before if you haven't used it and have a spare Faeburrow Elder).

Step 4a: Get Jace, Wielder of Mysteries with Granted, cast him and win the game with his ability.

Step 4b: Cast Leyline of Abundance. Then cast all the creatures except for Rosethorn Acolyte, and activate the ability on Leyline of Abundance as many times as you like to make your creatures arbitrarily large. Then use Seasonal Ritual (Rosethorn Acolyte 's adventure, you could just you her mana ability if you had her in play from a previous turn) to give yourself a red mana and activate the haste ability on Kenrith, the Returned King and swing for lethal.