Myth Reunion

Build one big 2nd Calliope and use her SP to swing Memento Mori twice in one turn.

BTier
77.1%Win rate vs the field
#33 of 49JP ranking
JPCard pool
DRound robin tier: 42.3% head-to-head, #34 of 49

How the deck wins

2nd Calliope hBP06-060 is the deck: a 1-cheer Arts that adds a cheer, and Memento Mori, a flat 200 for 4 colorless that also gives one #Myth holomem Arts+20 this turn.

Calliope's SP, Reaper's Rap, lets a Calliope use the same Arts a second time this turn. A double Memento Mori ends most games.

The 2-power oshi skill archives 2 cards to bring back 2 #EN holomem, so knocked-out pieces come back.

Deck list

Tap any card to see it full size.

Oshi and holomem (31)
Support (19)
Cheer deck (20)
QtyCardTypeCard no.
1Mori CalliopeOshihBP02-007
7Mori CalliopeDebuthBP02-054
2Mori CalliopeDebuthBP06-057
4Ninomae Ina'nisDebuthBP02-061
2Takanashi KiaraDebuthBP08-041
2Watson AmeliaSpothBP01-101
2Mori Calliope1sthBP06-058
4Mori Calliope1sthBP06-059
2Ninomae Ina'nis1sthBP02-062
1Ninomae Ina'nis1sthBP02-063
1Takanashi Kiara1sthBP03-036
4Mori Calliope2ndhBP06-060
1Harusaki NodokaStaffhSD01-016
3Bloom StageEventhBP06-090
3MythEventhBP08-100
3SorAZ CelebrationEventhBP05-080
2Archive PCItemhBP07-092
3Creator PCItemhBP08-091
4Normal PCItemhBP01-104
20Purple CheerCheerhY05-001

Matchups (round robin)

In the JP round robin, each of the 49 JP specialist AIs played every other one 400 times, half going first. This deck won 42.3% of those games: tier D, #34 of 49. It won 17 of its 48 matchups (21 below 40%). These are AI-vs-AI results, not tournament data.

Best matchups

  1. Chloe holoX-lot79.2%
  2. Chihaya Fantastic Driver71.0%
  3. Roboco-oshi Koyori Loop70.5%
  4. Ina Prism Crit68.0%
  5. Hajime Banchou65.8%

Toughest matchups

  1. Nene Energy Drink4.5%In its wins, Nene Energy Drink attacks with "We'll Snuggle under the Covers" from 2nd Momosuzu Nene (hBP09-088) 6.5 times a game, and attacks with "Extreme Cheerleading" from 2nd Momosuzu Nene (hBP07-083) 1.1 times a game, and downs 4.8 holomems a game. When Myth Reunion wins, it downs 3.9 holomems a game (vs 1.0 in its losses) and attacks with "Memento Mori." from 2nd Mori Calliope (hBP06-060) more often (3.9 vs 2.8 times a game).
  2. Subaru Oozora Police8.2%In its wins, Subaru Oozora Police attacks with "The Sun that Never Sets" from 2nd Oozora Subaru (hBP09-014) 4.4 times a game, and attacks with "Do You Think Long Hair Suits Me?" from Debut Oozora Subaru (hBP09-008) 1.4 times a game, and downs 5.0 holomems a game. When Myth Reunion wins, it downs 5.0 holomems a game (vs 2.7 in its losses) and attacks with "Memento Mori." from 2nd Mori Calliope (hBP06-060) more often (4.1 vs 2.5 times a game).
  3. Gigi Homing Riot10.8%
  4. Vivi Overflow Stall12.5%
  5. Vivi x Su Lock v215.8%

vs Nene Energy Drink

4.5%

4% going first, 4% going second. Games last 15.2 turns on average (400 games).

Most wins come from taking the opponent's last life card (72% of wins). In a loss, the opponent usually takes its last life card (98% of losses).

In its wins, Nene Energy Drink attacks with "We'll Snuggle under the Covers" from 2nd Momosuzu Nene (hBP09-088) 6.5 times a game, and attacks with "Extreme Cheerleading" from 2nd Momosuzu Nene (hBP07-083) 1.1 times a game, and downs 4.8 holomems a game. When Myth Reunion wins, it downs 3.9 holomems a game (vs 1.0 in its losses) and attacks with "Memento Mori." from 2nd Mori Calliope (hBP06-060) more often (3.9 vs 2.8 times a game).

Key cards

2nd Calliope hBP06-060 (main attacker)

Bull's-Eye!!!!: 60, may archive the top 2 to send a cheer. Memento Mori.: 200+ for 4 colorless.

Your finisher; the trained AI deals almost all its damage with her.

Mori Calliope (oshi)

2 power: archive 2 from hand, return 2 #EN holomem. SP: after a Calliope's Arts, use it again.

Save the SP for a double Memento Mori, around turn 5-6.

1st Calliope hBP06-059

Bloom: with 3+ #EN holomem, send a blue or purple cheer.

Bloom it on turn 2; the trained AI does it in almost every game.

1st Calliope hBP06-058

Collab: draw 3, archive 2.

Collab it to dig.

Myth

Look at the top 4; take any #Myth holomem.

Your main search card.

1st Ina hBP02-063

Bloom: heal 20 on a #Myth holomem.

Small heal for your Calliope.

Game plan

Turns 1–2

Early game

Bloom Calliope early.

  1. Play Normal PC and Creator PC for 3+ #EN holomem.
  2. Bloom 1st Calliope hBP06-059 on turn 2 for a cheer.
  3. Use Myth to find more pieces.
Turns 3–4

Mid game

Get 2nd Calliope out.

  1. Bloom 2nd hBP06-060 around turn 3 or 4.
  2. Use Bull's-Eye to add cheers if she isn't ready.
  3. Keep Ina and Kiara behind as support.
Turn 5 on

Late game

Double Memento Mori.

  1. Load her with 4 cheers and swing Memento Mori.
  2. Fire Reaper's Rap for a second swing.
  3. Use the 2-power skill to recover lost Myth members.

What the trained AI does

In 60 test games the trained AI won 85%, against 62% for the general AI playing the same deck. It finished games in about 8 of its own turns.

Habit (per game)Trained AIGeneral AIWhat it means for you
2nd Calliope damage988731Put everything on 2nd Calliope.
1st Calliope hBP06-059 damage2065Bloom 1sts instead of attacking with them.
Debut hBP06-057 Arts used0.11.0Don't waste turns on small Arts.
1st Calliope blooms on turns 1-21.3—Bloom early.
SP used90% of games72% of gamesPlan the double swing.

Practice it

  1. In Match Lab's Player vs Bot, play against the Myth Reunion (JP) Specialist AI first and watch how it sets up.
  2. Then pilot the deck yourself against the Generalist AI.
  3. Aim to win in about 8 of your own turns, like the trained AI does.

Last updated 2026-11-11.