This deck is constructed for use under the Galaxy Comics point system.
TL,DR of the point system is "Don't win before turn 6, and do damage with your Commander to get the most points".
The typical TNT decks will create infinite mana and draw their deck off Thrasios, Triton Hero or draw the deck with Ad Nauseam and then cast Thassa's Oracle. We are still going to draw our deck and make infinite mana, but from there we go for points and a combat damage win instead of an immediate Thoracle kill.
Actually winning
The goal is to draw our deck. We do this with Freed from the Real + Bloom Tender or Faeburrow Elder, Isochron Scepter + Dramatic Reversal + 3 non-land mana, or the good old Ad Nauseam + Angel's Grace (after which we make infinite mana with Scepter). We filter colorless into colored mana using the all colorless Scepter combo + Arcane Signet.
Now that we have our entire deck and infinite mana, we can lock out our opponents with Teferi, Time Raveler backed up by every counter in the deck.
From here we can play any spell in the deck as many times as we want using Eternal Witness and Capsize with buyback. We use this to gain infinite life by repeatedly using Oko, Thief of Crowns +2, destroying him, and recasting him.
Next we want to use Mindslaver on each of our opponents so that we control all 3 of their turns, with Teferi, Time Raveler keeping anyone from doing anything. This will be relevant later, but essentially we take an extra turn as well as being able to control our opponents. When it gets back to our turn, we can use Angel's Grace to avoid dying to decking, and the Eternal Witness loop to get back all of the cards that we discarded.
And now we begin the process of getting as many points as we can before killing our opponents.
All Possible Ways to Earn Extra Points After Turn 6
1pt Have the lowest life total, to a maximum of 15, when the first player is eliminated
Walking Ballista can bring us down to 15 before we kill anyone
1pt First player to have fewer than ten cards in his or her library
This will already be us, we win by drawing our deck with Ad Nauseam or Thrasios, Triton Hero
1pt Be directly responsible for eliminating the first player from the pod
We are killing everyone the turn we draw our deck (hopefully)
1pt Deal 6 or more damage to yourself in 1 turn
We can use Walking Ballista for this
2pt Deal 12 or more damage to yourself in 1 turn (separate turn from above)
After "taking another turn" by Mindslavering each opponent, use Walking Ballista on ourselves. If needed, we can loop an Oko, Thief of Crowns
2pt Remove each enemy commander from the battlefield (Destroy, Exile, Bounce)
With the Mindslaver recursion, we can force our opponents to cast their commanders which we can then kill with an Assassin's Trophy loop.
2pt Steal a permanent from each player
Gilded Drake + Capsize can steal a creature from each. Beast Within can give them a creature if needed.
2pt Eliminate an opponent while your life is 5 or less
Walking Ballista can get us to 5 or below
1pt Cast your commander for the 4th time
Cast Tymna the Weaver. Kill it with Assassin's Trophy. Put it back in hand with Eternal Witness + Capsize. Repeat.
1pt (awarded multiple times) Eliminate a player
We're killing everyone one at a time
1pt (awarded multiple times) Deal exactly lethal non-Commander damage to a player at 7 or more life
We can gain our opponents some life by destroying their non-land permanents with Beast Within, then Swords to Plowshares on all the tokens. We need each opponent to be at 13 or more life so that we can get the below points. See below for how we kill them
1pt (awarded multiple times) Eliminate a player with a permanent they own
After destroying all of their non-lands with Beast Within, leave 1 Beast alive per player when we Swords to Plowshares them. Loop a Gilded Drake with Capsize to steal their Beasts. Then we cast Finale of Devastation giving the Beasts +10/+10 and haste. Use Walking Ballista to set their life totals to 13, and then attack for exactsies with the Beasts (owned by opponents).
1pt
Destroy 10 or more permanents with a single spell
Cast all the creatures in my deck, then Damnation them. Eternal Witness + Capsize brings them back.
1pt
Destroy a Sensei's Divining Top you don't control
On first turn after deck draw, play Oko, Thief of Crowns and +2 him. Take another turn. On this turn, ultimate Oko and swap my Sensei's Divining Top with their Beast token from Beast Within on a permanent. Then destroy with Nature's Claim + Force of Vigor when they try to activate.
Sequence (for actual games)
Cards needed:
Teferi, Time Raveler
Damnation
Eternal Witness
Capsize
Oko, Thief of Crowns
Beast Within
Assassin's Trophy
Swords to Plowshares
Mindslaver
Gilded Drake
Angel's Grace
Sensei's Divining Top
Finale of Devastation
Walking Ballista
First Turn
Draw deck, infinite colored mana
Teferi
Establish Eternal Witness + Capsize
Lifegain (Loop Oko)
Damnation all my creatures
Loop commander x4
6 to myself
Oko +2
Beast Within everything, Swords/Path them all but one Beast per player.
Mindslaver
Gilded Drake loop
Discard to hand size. Keep Eternal Witness, Capsize, Angel's Grace, 4 counters
Opponent's Turns
Cast their commander
Second Turn
Upkeep Angel's Grace
Donate Top with Oko
Kill all commanders
12 to myself, go to 5 life
Finale of Devastation
Walking Ballista everyone, then swing for exactsies
