Second Sunrise psuedo-eggs combo Breya. Way more combos than are needed to win, to give multiple lines of play for redundancy in case combo pieces get removed, and variety to keep things unpredictable over the course of many games. Includes an assortment of tutors and ways to filter through the deck to look for one of any number of game-winning interactions that will give you a win in a huge combo turn.
WAYS TO WIN THE GAME
The goal of the deck is to produce one of many possible specific board states that will allow you to win the game on the spot by defeating all your opponents in a single turn. This can be done by generating an arbitrarily large amount of or , creating unlimited thopter tokens, or by generating infinite triggers for an artifact entering or leaving the battlefield. Once you have one of these conditions, these are the cards you will use to actually kill the table:
Breya, Etherium Shaper can dome an opponent for 3 damage by sacrificing two artifacts and paying . With an unlimited source of artifacts and colorless mana, she can kill all your opponents at once, no matter how high their life total may have gotten. Breya can also go infinite all by herself with access to unlimited colored mana, sacrificing herself and one of her thopters to her own ability to dome an opponent for 3, moving to the command zone, and repeatedly re-casting. This also produces ETBs/LTBs but the direct damage will get there sooner.
If you are able to create infinite thopters or repeatedly recur an artifact enters the battlefield trigger, Reckless Fireweaver will nuke down the board like a mini-Purphoros, and Altar of the Brood will mill the table.
If you can repeat an artifact leaves the battlefield trigger, Disciple of the Vault and Marionette Master will drain your opponents for each time it happens. You will have plenty of artifacts heading to the graveyard by activating Breya's ability, or from going in the ironworks or being cracked for a card.
THE INTERACTIONS
SECOND SUNRISE / CODEX SHREDDER LOOP
Second Sunrise OR Faith's Reward OR Scrap Mastery + Codex Shredder + Krark-Clan Ironworks + lots of artifacts -- float mana from a ton of artifacts then sacrifice them to Krark-Clan Ironworks for a ton of colorless. Play a recursion spell to bring them back to the battlefield. Sacrifice Codex Shredder to bring back your recursion spell. Repeat, hopefully netting mana each time.
This loop will let you draw your deck with card-draw artifacts like the spellbombs, prisms, or Quicksmith Genius, can generate , or with artifact lands and signets. Be careful when looping using an artifact that has a card draw trigger on it. If you attempt to go infinite, you will deck yourself and lose.
ELDRAZI DISPLACER
Eldrazi Displacer + Krark-Clan Ironworks OR Ashnod's Altar + Breya. Sacrifice two thopter tokens to ironworks or altar to generate , then pay to use flicker Breya with Eldrazi Displacer, netting each time, until . Use that to flicker Breya any number of times, creating any number of thopter tokens which can then be sacrificed to Breya.
NIM DEATHMANTLE
Nim Deathmantle + Krark-Clan Ironworks OR Ashnod's Altar + Breya. Equip deathmantle on Breya. Sacrifice Breya and one thopter to ironworks or altar to generate , then pay to activate Nim Deathmantle, returning Breya to the battlefield, netting one thopter each time.
SHARUUM THE HEGEMON / PHYREXIAN METAMORPH
Sharuum the Hegemon + Phyrexian Metamorph. Play Metamorph targetting Sharuum. When it enters the battlefield, you'll have the trigger from the new Sharuum to reanimate an artifact, and you'll have to sacrifice one of the Sharuum to the legend rule. Stack your triggers so you sacrifice first, sending one to the graveyard, and with the reanimate trigger, bring Sharuum back. This cycle can repeat as many times as you want, and generates unlimited artifact ETB/LTB triggers.