Hmm, I think it doesn't work since you could get a necromancer at the same time as a haste token by the following steps:
- Get a haste token
- Play a nontoken creature from hand
- Go to combat, and have your nontoken creature take damage
- Mirrorweave for a necromancer
- Get back Sek'kuar
- Change the type of the creature with damage to kill it and get a haste token
The key thing about Shadowborn Apostle and Hecatomb is that they kill all the nontoken creatures in the deck at the same time, which Soulblast doesn't do.
Although, perhaps Soulblast could be used to start a computation rather than using combat steps? Though it would lose a layer.
Hmm, Mogg Infestation seems to work - we don't actually need indestructible; on our own creatures it's just a convenience that can be worked around by using output clocks that keep them alive, and on our opponents creatures we can use Kiora's +1 ability.
It can even replace Dowsing Dagger - we donate them sek'kuar, blow it up for a token, and keep doubling it. It just can't be used after the machine is set up, as otherwise it would irrecoverably destroy their necromancers, but that's ok as we can ensure they have BB(X) other creatures between computations.
Hmm, though the lack of indestructible on our creatures means its taking combat damage from every creature, surely enough to kill it. Solution is to use Armed // Dangerous or Grappling Hook - in the first strike step we assign all but 1 of our combat damage to something on which damage is prevented, then 1 to another creature we want, triggering arcbond; then by the normal damage step there are BB(X) creatures that can keep our attacker alive and only X creatures blocking it dealing a maximum of X^2 damage back. (or all the blockers could have died by this point).
That doesn't work, since we need the opponent to have necromancers before setting up the TM, but mirrorweaveing everything into Shadowborn Apostle would take away their necromancers.
Realized that Sea God's Scorn can bounce Hecatomb, allowing us to go infinite by mirrorweaving all our tokens to Necromancers, and repeatedly saccing them to get more back + life.
Sea God's Scorn is useful though for Happily Ever After, as well as allowing TYS to be copied so that Steady Progress multiplies the storm count by 7, increasing the base.
With apostle there's no way to kill creatures once it's used without using combat damage, requiring the haste tokens thus not allowing necromancer.
Edit: Cinder Hellion would allow the second Kiora to be cut (oracle text says opponent or planeswalker) allowing for a nocreature slot, whichever is more helpful.
Edit: Actually, archive is needed for a BB-layer; to set up a TM we need to mirrorweave to give them necromancers, but then they no longer have their angels of vitality.
In a Nexus of fate version, Kiss of the Amesha could be used as the card draw to life conversion without going infinite with nexus; it would half the number of draws but does take one fewer card which could end up being relevant.
Hmm, the Hectacomb version still has one open creature slot; perhaps it could be Angel of Vitality that we give them a lot of via Mirrorweave? That way we can use their deck for their life without having to worry about Archive
Sek'Kuar, Deathkeeper would almost work; if we had a way to ensure that no nontokens can exist when he gets brought back, which Hand of Emrakul doesn't do.
However, I think I have a solution: Shadowborn Apostle + Spy Kit
Then we'd have exactly 6 creatures in the deck: Necromancer, Sek'Kuar, Apsotle, Liege of the Hollows, and 2 more.
Then one RMB = 2^X storm
one echo storm = 2^^X
one planar birth = 2 -> X -> 3
land drop: 4
B: 5
G: 6
opp life: 7
life = 2 -> X -> 8
one-time life gain = 2 -> X -> 9
N iterations: 2 -> N -> 10 (looks like we were 1 layer too high previously)
N = 1 + 53 + 2 + however many cards we don't need to draw (I count 23) = 79
- Get a haste token
- Play a nontoken creature from hand
- Go to combat, and have your nontoken creature take damage
- Mirrorweave for a necromancer
- Get back Sek'kuar
- Change the type of the creature with damage to kill it and get a haste token
The key thing about Shadowborn Apostle and Hecatomb is that they kill all the nontoken creatures in the deck at the same time, which Soulblast doesn't do.
Although, perhaps Soulblast could be used to start a computation rather than using combat steps? Though it would lose a layer.
It can even replace Dowsing Dagger - we donate them sek'kuar, blow it up for a token, and keep doubling it. It just can't be used after the machine is set up, as otherwise it would irrecoverably destroy their necromancers, but that's ok as we can ensure they have BB(X) other creatures between computations.
Hmm, though the lack of indestructible on our creatures means its taking combat damage from every creature, surely enough to kill it. Solution is to use Armed // Dangerous or Grappling Hook - in the first strike step we assign all but 1 of our combat damage to something on which damage is prevented, then 1 to another creature we want, triggering arcbond; then by the normal damage step there are BB(X) creatures that can keep our attacker alive and only X creatures blocking it dealing a maximum of X^2 damage back. (or all the blockers could have died by this point).
Edit: Actually, Mogg Infestation and Hellion Eruption both go infinite with Sylvok Lifestaff
Oath of Teferi works though.
Sea God's Scorn is useful though for Happily Ever After, as well as allowing TYS to be copied so that Steady Progress multiplies the storm count by 7, increasing the base.
With apostle there's no way to kill creatures once it's used without using combat damage, requiring the haste tokens thus not allowing necromancer.
So, switching back to Apostle gives us:
2 Eureka
3 Omniscience
4 Thousand-Year Storm
5 Spellweaver Volute
6 Pull from Eternity
7 Recoup
8 Coat of Arms
9 Xathrid Necromancer
10 Arcbond
11 Artificial Evolution
12 Mirrorweave
13 Dowsing Dagger
14 Dralnu's Crusade
15 Mirrormade
16 Mirrormade
17 Mirrormade
18 Mirrormade
19 Copy Enchantment
20 Roar of Challenge
21 Forebear's Blade
22 Chameleon Blur
23 Harmless Offering
24 Upwelling
25 Orb of Dreams
27 Liege of the Hollows
28 Sek'Kuar, Deathkeeper
29 Angel of Vitality
30 (any creature)
31 Spy Kit
32 Honor-Worn Shaku
33 Mystic Speculation
34 Steady Progress
35 Nexus of Fate
36 Mana Echoes
37 Seize the Day
38 Red Mana Battery
39 Echo Storm
40 Island
41 Amulet of Vigor
42 Stone Rain
43 Planar Birth
44 Hallowed Fountain
45 Charge Across the Araba
47 Kiora, the Crashing Wave
48 Rings of Brigthearth
49 Primevals' Glorious Rebirth
50 Dimir Guildgate
51 Splendid Reclamation
52 Mana Confluence
53 Caged Sun
54 Angelheart Vial
55 Borrowing the East Wind
56 Alhammarret's Archive
57 Mirror Gallery
58 Happily Ever After
59 Sea God's Scorn
60 Sylvok Lifestaff
with one available creature slot.
Should be BB_13(7 -> 54 -> 12).
Edit: Cinder Hellion would allow the second Kiora to be cut (oracle text says opponent or planeswalker) allowing for a nocreature slot, whichever is more helpful.
Good catch with not needing Archive any more though.
Also, Peak Erruption deals damage thus going infinite with Angelheart Vial so we need to use Mana Confluence either way
Edit: Actually, archive is needed for a BB-layer; to set up a TM we need to mirrorweave to give them necromancers, but then they no longer have their angels of vitality.
Prospective decklist:
2 Eureka
3 Omniscience
4 Thousand-Year Storm
5 Spellweaver Volute
6 Pull from Eternity
7 Recoup
8 Coat of Arms
9 Xathrid Necromancer
10 Arcbond
11 Artificial Evolution
12 Mirrorweave
13 Dowsing Dagger
14 Dralnu's Crusade
15 Mirrormade
16 Mirrormade
17 Mirrormade
18 Mirrormade
19 Copy Enchantment
21 Forebear's Blade
22 Chameleon Blur
23 Harmless Offering
24 Upwelling
25 Orb of Dreams
26 Angel's Grace
27 Hectacomb
28 Liege of the Hollows
29 Sek'Kuar, Deathkeeper
30 Angel of Vitality
31 Seize the Day
32 Mystic Speculation
33 Mana Echoes
34 Red Mana Battery
35 Steady Progress
36 Echo Storm
37 Island
38 Amulet of Vigor
39 Stone Rain
40 Planar Birth
42 Charge Across the Araba
43 Kiora, the Crashing Wave
44 Kiora, the Crashing Wave
45 Rings of Brigthearth
46 Primevals' Glorious Rebirth
47 Dimir Guildgate
48 Splendid Reclamation
49 Mana Confluence
50 Caged Sun
51 Angelheart Vial
52 Borrowing the East Wind
53 Alhammarret's Archive
54 Mirror Gallery
55 Curse of Fool's Wisdom
56 Unmoored Ego
57 Sylvok Lifestaff
3 slots remaining to work with.
In a Nexus of fate version, Kiss of the Amesha could be used as the card draw to life conversion without going infinite with nexus; it would half the number of draws but does take one fewer card which could end up being relevant.
Edit: Hectacomb -> Shadowborn Apostle makes 2 of the 3 deck slots Kozilek's Channeler and Spy Kit.
Though currently we're using Watery Grave so that it can be destroyed by Boil/Boil the seas
However, I think I have a solution: Shadowborn Apostle + Spy Kit
Then we'd have exactly 6 creatures in the deck: Necromancer, Sek'Kuar, Apsotle, Liege of the Hollows, and 2 more.
Replace Confessor for a colourless mana dork (say, Kozilek's Channeler), and replace Coersion for Thousand-Year Elixir).
Then, one R = X copies of Seize the day to untap it for X colourless = X storm; doubling X
Then one RMB = 2^X storm
one echo storm = 2^^X
one planar birth = 2 -> X -> 3
land drop: 4
B: 5
G: 6
opp life: 7
life = 2 -> X -> 8
one-time life gain = 2 -> X -> 9
N iterations: 2 -> N -> 10 (looks like we were 1 layer too high previously)
N = 1 + 53 + 2 + however many cards we don't need to draw (I count 23) = 79