The goal of this preliminary list is to generate infinite mana and nuke the table with an arbitrarily large Walking Ballista while maintaining a low average CMC and healthy draw, protection, and tutor suites. I've opted to substitute Ravos, Soultender in place Tymna because his graveyard recursion ability facilitates our creature heavy strategy and could be useful as a way to return Protean Hulk to our hand if our combo is interrupted.
What We Do With Infinite Mana
We have two mana sinks in this list:
1) Thrasios
2) Walking Ballista
Infinite mana allows us to draw our deck via Thrasios's activated ablility until we find Walking Ballista and enough protection to safely cast him for an arbitrarily large (XX) cost. Once we have an enormous Walking Ballista on the board, we remove enough counters, targeting our opponents and their creatures, to clear the field and kill the table.
How We Get There
The Bomberman Combo
1) With Auriok Salvagers and Lion's Eye Diamond in play, sacrifice LED for 3 white mana.
2) Activate Auriok Salvagers ability using the mana generated from LED to return LED from your graveyard to your hand.
3) Repeat steps 1 and 2 for a net-gain of 1 white mana each loop to generate an unlimited supply of white mana.
4) Now that your mana pool is filled with an arbitrary amount of white mana, repeat steps 1 and 2 again, this time sacrificing LED to generate unlimited mana of any color, using the white mana from the previous loop to activate Auriok Salavagers and return LED to your hand after each iteration.
Grim Monolith + Power Artifact
1) Enchant Grim Monolith with Power Artifact.
2) Tap Grim Monolith, generating 3 colorless mana.
3) Pay 2 (reduced from 4 thanks to Power Artifact's ability) to untap Grim Monolith.
4) Repeat steps 2 and 3 an arbitrary number of times, netting 1 colorless mana after each loop.
The Protean Hulk Chain
1) Put Protean Hulk onto the battlefield with Flash and fail to pay the remaining cost, sacrificing Hulk upon entry. Or cast Hulk and sacrifice him with any available sacrifice outlet.
2) Use his trigger to send Viscera Seer and Karmic Guide to the battlefield.
3) Return Hulk to the battlefield with Karmic Guide.
4) Sacrifice Hulk to Viscera Seer, tutoring Auriok Salvagers and Phatasmal Image to the battlefield
5) Have Phantasmal Image enter as a copy of Karmic Guide, returning Hulk to the battlefield.
6) Sacrifice Hulk to Viscera Seer, tutoring Trinket Mage and any other creature you might want for a total of 3cmc or less (Grand Abolisher for instance) to the battlefield. Trinket Mage tutors Lion's Eye Diamond to your hand upon entry.
Now that you have Auriok Salvagers on the battlefield and LED in hand, you are ready to execute the Bomberman combo.
Fiend Hunter is useful beyond his removal utility as an optional Hulk target and as a way to jumpstart the engine again (exile Karmic Guide and sacrifice Fiend Hunter to return Guide to the battlefield) if our chain is interrupted.
Keep in mind that if you are on the Protean Hulk line of play and don't want to draw your deck to find Walking Ballista, you can tutor it to the battlefield for 0cmc off of any Hulk death trigger. Walking Ballista will die upon entering from having a toughness equal to zero, allowing Auriok Salvagers to return it to your hand and cast it to kill the table once you've generated infinite mana with the Bomberman combo.
Ad Nauseam
The average converted mana cost of this list is 2.00 which means Ad Nauseam is a feasible way of drawing into both a wincon and protection for when you attempt it. Angel's Grace allows for a near unconditional win if Ad Nauseam resolves.
Hulk Sacrifice Outlets
1) Diabolic Intent
2) Birthing Pod
3) Eldritch Evolution
4) Flash
5) Natural Order
6) Viscera Seer
Tutors
1) Diabolic Intent
2) Birthing Pod
3) Demonic Tutor
4) Eladamri's Call
5) Eldritch Evolution
6) Enlightened Tutor
7) Green Sun's Zenith
8) Grim Tutor
9) Imperial Seal
10) Natural Order
11) Summoner's Pact
12) Survival of the Fittest
13) Trinket Mage
14) Vampiric Tutor
15) Worldly Tutor
Protection, Removal, and Interaction
1) Beast Within
2) Counterspell
3) Cyclonic Rift
4) Fiend Hunter
5) Force of Will
6) Gaddock Teeg
7) Gilded Drake
8) Grand Abolisher
9) Grasp of Fate
10) Mana Drain
11) Negate
12) Pact of Negation
13) Pithing Needle
14) Swan Song
15) Swords to Plowshares
16) Toxic Deluge
Card Draw and Filtering
1) Ad Nauseam
2) Brainstorm
3) Dark Confidant
4) Impulse
5) Jace, Vyrn's Prodigy
6) Night's Whisper
7) Ponder
8) Preordain
9) Sensei's Divining Top
10) Sylvan Library
11) Thrasios, Triton Hero
12) Time Spiral
Recursion
1) Eternal Witness
2) Jace, Vyrn's Prodigy
3) Karmic Guide
4) Ravos, Soultender (Commander)
5) Snapcaster Mage
6) Time Spiral