Kobo Rainout

Rain special damage over the opponent's whole back row until it collapses.

DTier
64.6%Win rate vs the field
#43 of 49 · #27 of 35JP ranking and EN ranking
JPCard pool
DRound robin tier: 24.8% head-to-head, #46 of 49

How the deck wins

Kobo's cards deal 10-20 special damage to several back holomem at once. Their back row gets worn down before it can bloom into attackers.

Once per turn, for 1 power, when a Kobo ability archives a cheer, Rain Shamanism adds 20 special damage. The trained AI deals almost twice the general AI's special damage.

2nd Kobo hBP05-049 gets cheers back once their back row has lost 80+ HP, and Kobo's 6 life gives the rain time to work.

Deck list

Tap any card to see it full size.

Oshi and holomem (34)
Support (16)
Cheer deck (20)
QtyCardTypeCard no.
1Kobo KanaeruOshihBP01-008
4Kobo KanaeruDebuthBP01-082
4Kobo KanaeruDebuthBP01-083
4Kobo KanaeruDebuthBP05-047
2Kobo Kanaeru1sthBP01-085
3Kobo Kanaeru1sthBP01-086
4Kobo Kanaeru1st BuzzhBP03-045
3Kobo Kanaeru1sthBP05-048
2Kobo Kanaeru1sthBP07-058
4Kobo Kanaeru2ndhBP01-087
4Kobo Kanaeru2ndhBP05-049
4Harusaki NodokaStaffhSD01-016
4holoANStaffhSD14-010
2So, That Makes You My EnemyEventhBP01-108
4Normal PCItemhBP01-104
2CilusMascothBP05-086
20Blue CheerCheerhY04-001

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 24.8% of those games: tier D, #46 of 49. It won 4 of its 48 matchups (38 below 40%). These are AI-vs-AI results, not tournament data.

Best matchups

  1. Chloe holoX-lot66.8%
  2. NePoLaBo Teamwork58.2%
  3. Ina Prism Crit55.2%
  4. Roboco-oshi Koyori Loop51.0%
  5. Nerissa Demon Song48.2%

Toughest matchups

  1. Mio-oshi Baelz Elizabeth1.8%In its wins, Mio-oshi Baelz Elizabeth attacks with "It's not fun without you" from 1st Hakos Baelz (hBP07-045) 5.0 times a game, and downs 5.1 holomems a game. Kobo Rainout won only 7 of 400 games here.
  2. Kaela Master Forge6.2%In its wins, Kaela Master Forge attacks with "A Blacksmith's True Purpose" from 2nd Kaela Kovalskia (hBP09-044) 4.1 times a game, and attacks with "Vacation on Islands" from 2nd Kaela Kovalskia (hBP09-043) 1.6 times a game, and downs 4.8 holomems a game. When Kobo Rainout wins, it downs 4.2 holomems a game (vs 1.4 in its losses) and attacks with "Tracing Streaks of Rain" from 2nd Kobo Kanaeru (hBP05-049) more often (3.2 vs 1.2 times a game).
  3. Haato Chama Journey6.5%
  4. Towa Selection6.8%
  5. Kyoko Hero Cop6.8%

vs Mio-oshi Baelz Elizabeth

1.8%

2% going first, 2% going second. Games last 11.1 turns on average (400 games).

Most wins come from taking the opponent's last life card (86% of wins). In a loss, the opponent usually takes its last life card (59% of losses).

In its wins, Mio-oshi Baelz Elizabeth attacks with "It's not fun without you" from 1st Hakos Baelz (hBP07-045) 5.0 times a game, and downs 5.1 holomems a game. Kobo Rainout won only 7 of 400 games here.

Key cards

2nd Kobo hBP05-049 (main attacker)

Tracing Streaks of Rain: 60, return a blue cheer once their back row has lost 80+ HP. Lingering Echoes of Rain: 120 for 4 cheers.

Your main attacker once the back row is damaged.

2nd Kobo hBP01-087

Rain Mantra: 40, may archive a cheer for 20 special to every back holomem.

Use it to spread damage, which also triggers Rain Shamanism.

Kobo Kanaeru (oshi)

1 power: when your blue holomem archives a cheer, 20 special. SP: send 1-5 archived cheers to #ID holomem.

Fire the 1-power skill once per turn after a cheer is archived. Use the SP to refuel late.

1st Kobo Buzz hBP03-045

40 +10 per damaged back holomem. Bloom: archive a cheer for 30 special split in 10s.

Strong mid-game hitter. It costs 2 life if downed.

1st Kobo hBP05-048

Collab and Arts: 10 special to 2 back holomem.

Free chip damage every turn.

Debut Kobo hBP01-083

Collab: with an #ID center, roll a die; on 3+, send a cheer.

Your turn-1 collab in almost every game.

This deck does worse going second (57% vs 90% first). Going second, start the back-row damage right away.

Game plan

Turns 1–2

Early game

Start chipping the back row.

  1. Collab debut hBP01-083 for a cheer.
  2. Bloom 1sts that hit the back row on turn 2.
  3. Play holoAN to keep cards coming.
Turns 3–4

Mid game

Get 2nds out and spread damage.

  1. Bloom 2nd hBP05-049 and 2nd hBP01-087 around turn 3-4.
  2. Use Rain Mantra and fire Rain Shamanism once per turn after a cheer is archived.
  3. Knock out back holomem before they bloom.
Turn 5 on

Late game

Finish what's left.

  1. Attack with hBP05-049 once their back row has lost 80+ HP.
  2. Use Rainmaking to refill cheers.
  3. Games run long, about 9 of your turns; Kobo's 6 life helps.

What the trained AI does

In 60 test games the trained AI won 73%, against 50% for the general AI playing the same deck. It finished games in about 9 of its own turns.

Habit (per game)Trained AIGeneral AIWhat it means for you
Total special damage513270Spread damage over the whole back row.
2nd hBP05-049 damage357305Make hBP05-049 the main attacker.
2nd hBP01-087 damage107178Use Rain Mantra for spread, not for big hits.
Debut hBP01-083 collabs on turns 1-21.0—Collab it right away.
Games finished in (your turns)8.910.2Steady chip damage ends games sooner.

Practice it

  1. In Match Lab's Player vs Bot, play against the Kobo Rainout (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 9 of your own turns, like the trained AI does.

Last updated 2026-11-11.