This is a Breya bomberman combo deck.
The "combo bomb" is one of the abilities that Breya has: "; Sacrifice two artifacts, and Breya Deals 3 damage to target player". There are very many ways to get infinite mana and artifacts on the field to kill everyone at the table - this deck does this well, among other combos.
My goal is to consistently combo off between turns 3 and 5 every game. This is not a "fun" deck. I don't care what the other people at the table are doing unless they are targeting me. They will not be having fun, because my deck is meant to be a death timer: combo faster than me or get me out of the game, or lose. This deck's weak points are an inconsistency in slowing the game down for my opponents while drawing into combos, and so I am continuing to try and add good counterspells. I also run hard removal like Vindicate or Anguished Unmaking, but if I'm using those cards, chances are that the deck isn't doing too well. I should either be comboing off, countering a spell targeting me, ramping, or tutoring.
Bomberman Strategy A (Fastest):
Get Auriok Salvagers onto the battlefield with Lion's Eye Diamond (LED). Sacrifice the LED creating 3 mana and discard your hand to the LED trigger. (Of note) It is most beneficial to play a card like Grand Abolisher out before this but it is not required. Create infinite mana by sacrificing Lion's Eye Diamond creating 3 mana. Then use that three mana to pay the activated ability cost to bring Lion's Eye Diamond from your graveyard to your hand. Play Lion's Eye Diamond. Again, crack it to create 3 mana, pay two of that mana to Auriok Salvagers to repeat this process producing infinite mana. Once you have infinite mana you can then continually sacrifice LED creating ,, and because you have infinite mana to pay Auriok Salvagers activated ability cost. Then cast Breya, Etherium Shaper however many times you need using the bomber-man ability dealing 3 damage to any target player by sacrificing Breya and one of the thopter tokens that she creates when entering the battlefield. Return Breya, Etherium Shaper to the commandzone paying the command tax to bring her back out and do this as many times as needed until everyone else is dead.
Bomberman Strategy B:
This combo functions around Breya, Etherium Shaper, Nim Deathmantle, Krark-Clan Ironworks (KCI) and/or Ashnod's Altar: The order of which to get these three pieces out does not matter much. However, you will need to have out Nim Deathmantle, a sacrifice outlet like Krark-Clan Ironworks and/or Ashnods Altar. Cast Breya, Etherium Shaper to create her two thopter tokens when she enters the battlefield. Sacrifice the two thopter tokens that Breya, Etherium Shaper makes from her ETB effect to KCI or Ashnods alter to generate colorless mana. Then sacrifice Breya, Etherium Shaper this way as well sending her to the graveyard which will trigger Nim Deathmantle. This will net you colorless mana. Repeat this process until you have infinite colorless mana. You can then sacrifice one thopter and Breya, Etherium Shaper to trigger deathmantle to create infinite thopters. You can now use Breya, Etherium Shaper ability to pay colorless mana and sacrifice your infinite thopters to bomberman everyone at the table.
Bomberman Strategy C (Dramatic Iso):
To set up this combo you will need a few mana rocks on the battlefield. The most simple way to do this would be Sol Ring and Arcane Signet. Cast Isochron Scepter and imprint Dramatic Reversal onto the Scepter. Use the Sol Ring to activate the Isochron Scepter. In response tap your other mana rocks like Arcane Signet to float mana. Then the Scepter trigger will resolve untapping all non land permanents. Repeat this process until you have unlimited colored mana and bomberman the table.
Cast Angel's Grace preventing you from losing the game although Angel's Grace does not prevent life loss from Ad Nauseam. Then cast Ad Nauseam drawing your entire library. Then with Laboratory Maniac on the battlefield, cast a card like Gitaxian Probe or Sign in Blood or Night's Whisper to draw from an empty library and win the game. You can also cast Thassa's Oracle to achieve the same thing.
Alternate Strat 2: Worldgorger Dragon + Necromancy or Animate Dead (+ At least 1 colored mana rock on field + Another creature in any graveyard or counterspell)
Get Worldgorger Dragon into your graveyard, preferably with Entomb. Then use a reanimate spell such as Necromancy or Animate Deadto reanimate Worldgorger Dragon onto the battlefield. This will create a loop of him coming into the battlefield exiling all permanents. When he comes onto the battlefield, in response, you will tap all mana rocks and mana sources before his trigger resolves, leaving you with plenty of floating mana. Then, because Necromancy or Animate Dead would leave the battlefield (due to Worldgorger Dragon entering the battlefield exiling all permanents)Necromancy or Animate Dead would then uniquip from Worldgorger Dragon sending him back to your graveyard, which returns all your permanents back to the battlefield. Necromancy or Animate Dead would then re-enter the battlefield and search for a target. Necromancy or Animate Dead would then target Worldgorger Dragon again repeating this process. Every time this would happen, tap all mana and rocks in response to the trigger. Do this to create infinite mana. You will need to have another creature in any graveyard to target or a Counterspell of some sort to stop this loop or the game will end in a draw. Once you end this loop, with your infinite mana cast Breya, Etherium Shaper as discussed before to bomberman the table.
cast Thassa's Oracle then in response to it's ETB trigger respond by casting Tainted Pact, drawing your library and winning the game when the Thassa's Oracle trigger resolves.
Here's a list of some combos:
Infinite Mana combos:
Every Infinite Mana Combo is in essence a wincombo because of Breya's last ability
Lion's Eye Diamond + Auriok Salvagers
Rings of Brighthearth + Basalt Monolith +
Thopter Foundry + Ashnod's Altar + Sword of the Meek +
Thopter Foundry + Mana Echoes + Sword of the Meek +
Thopter Foundry + Krark-Clan Ironworks + Sword of the Meek + any artifact to sac for mana.
Breya, Etherium Shaper + Krark-Clan Ironworks + Nim Deathmantle
Breya, Etherium Shaper + Ashnod's Altar + Nim Deathmantle
Breya, Etherium Shaper + Grand Architect + Nim Deathmantle
Isochron Scepter + Dramatic Reversal + Mana rocks able to produce
Infinite card draw:
Sensei's Divining Top + Rings of Brighthearth + any infinite mana combo (by copying the the top's draw a card ability with the rings when you tap and activate it).
or
Sensei's Divining Top + Rings of Brighthearth + Basalt Monolith +
Infinite Turns:
Time Sieve + Thopter Assembly + available. Or if you want to cast Time Sieve on the turn of the combo.
Time Sieve + Thopter Foundry + Sword of the Meek +
Any infinite mana combo that involves Breya likely includes bringing her back into play and generating mana via saccing her and one thopter (Such as Breya + Nim Deathmantle + Ashnod's Altar). This will obviously let you use her ability to zap enemies to death by using your infinite army of thopters.
Bonus Combo, because it's a classic:
Saheeli Rai + Felidar Guardian: throw infinite felidar guardians at opponents