Thanks to Mossy66779 for help with this deck.
This is a competitive, or semi competitive, Golos build focused on generating infinite or near infinite mana as quickly as possible using mana doublers and untapping shenanigans, then sinking that mana into Golos to play the entire deck and win through one of several combos: Casting Aetherflux Reservoir then casting the rest of your deck; casting Generous Gift, Reality Shift, Memory's Journey, and Noxious Revival to exile your opponents' boards and libraries. If those fail a final win con is Jeskai Ascendancy with a lot of prowess triggers and infinite combat steps for lethal combat damage.
Alternately if you want people to get annoyed you just cast Thassa's Oracle once you've exiled your deck with Golos, and cast Nexus of Fate or Noxious Revival if people try to make you draw before the ETB trigger resolves. I don't run Demonic Consultation or Tainted Pact because I have a personal dislike of that combo so I don't include it in this deck, but infinite mana and Golos amounts to the same thing, but it takes more steps and doesn't draw as much hate.
Ways to generate infinite mana and untaps:
The majority of creatures in this deck either produce mana or untap permanents. Kiora's Follower and Vizier of Tumbling Sands can untap mana dorks or lands, and either with Illusionist's Bracers can untap a mana dork or land and the other untapper to create an infinite loop of untapping and producing infinite mana of the available colours.
Magus of the Candelabra, Voyaging Satyr and Ley Weaver can untap lands, so can go infinite with either Maze of Ith, Freed from the Real, or Pemmin's Aura, although the Satyr can only untap one land so it can't work with the Maze unless it has Illusionist's Bracers. For the Magus you will need a land that produces multiple mana in play or a way to make said land two or more mana, the easiest way for that to happen is have Lotus Field in play as that produces three mana by itself and is hexproof so is very hard to remove. The Weaver doesn't have this problem as it requires no mana to activate itself. The idea is attack with either of these creatures, use Maze of Ith to untap it, then use the creature's ability to untap the Maze and at least one other land to generate some mana, then untap the creature with the Maze, and repeat for as long as you want. You will need Golos in play to ensure this mana goes somewhere, so make sure he is. In addition, Golos can be used to grab Lotus Field and Maze of Ith, but prioritise the Field first, as it means you only need to effectively sacrifice one land, whereas if you got it with something like Crop Rotation you're sacrificing three lands for the Field. The best land to grab with Crop Rotation is Maze of Ith, as it enables your land untapping combo and doesn't force you to remove a lot of lands to do so.
Any mana dork that has Pemmin's Aura or Freed from the Real on it can go infinite if the dork is able to generate more than one mana, examples include an adapted Incubation Druid or having Kinnan, Bonder Prodigy or Mana Reflection in play. The safest creatures to put these auras onto are Paradise Druid and Sylvan Caryatid, as they are/can be hexproof and therefore harder to get rid of, even though you will probably have excess mana and can keep the loop going before the creature dies.
Jeskai Ascendancy and Isochron Sceptre with Dramatic Reversal are basically Paradox Engines in this deck, with the added bonus that Jeskai Ascendancy can grow your creatures infinitely large as a last resort win.
Ways to protect our creatures:
Destiny Spinner: This prevents our creatures and enchantments from being countered, which allows us to cast mana dorks and untapping auras to go infinite without worrying about counterspells, although removal is still possible.
Rhythm of the Wild: This prevents our creatures from being countered and gives our dorks haste, allowing them to tap for mana immediately. Very useful if Jeskai Ascendancy is in play as it basically allows us to go infinite immediately once we have a critical mass of dorks.
Grand Abolisher: Prevents our opponents from casting spells or activating abilities during our turn, so stops counterspells and removal when we're ready.
Silence: Stops our opponents casting spells for one turn, in which we try to win.
Pemmin's Aura: Can give the enchanted creature shroud at instant speed. This card is better than Freed from the Real for this reason, as it can protect the creature it enchants, however it cannot protect itself.
Counterspells: They counter spells, what more is there to say?
Win cons: These will be ordered from quickest to slowest, and all assume you have infinite mana to sink into Golos.
Thassa's Oracle. Use Golos to exile your deck and cast her. If an opponent tries to make you draw before the trigger resolves either use one of your exiled counterspells or cast Memory's Journey, Noxious Revival, or Nexus of Fate to put cards back into your library so you don't die.
Aetherflux Reservior: Cast this then your deck, then use its ability to laser beam your opponents. Can go infinite with Nexus of Fate or the combo below.
Generous Gift + Reality Shift + Memory's Journey + Noxious Revival: Turn your opponents' permanents into 3/3 elephants, exile them with Reality shift, use Memory's Journey to shuffle them back in and cast Noxious Revival to put Memory's Journey back on top of your library. Use Golos to infinitely do this until your opponents have no libraries or boards and will loose by drawing from an empty deck. This doesn't work if an opponent can get around having no cards in their library, such as being able to dredge, but you have other ways to kill them if needed.
Jeskai Ascendancy: Use either Nexus of Fate or the combo above to infinitely grow your creatures and attack for lethal. Doesn't work if you've already attacked with one of your land untappers for your infinite mana, so you'll need another way to get infinite mana for this to work.