Marine Seductress

Bloom Marine twice a turn to stack holomem under her, then cash them in for huge hits.

BTier
76.7%Win rate vs the field
#34 of 49 · #21 of 35JP ranking and EN ranking
JPCard pool
DRound robin tier: 43.1% head-to-head, #33 of 49

How the deck wins

Marine's stage skill lets your center Marine bloom a second time in one turn while you have a collab. Each bloom stacks another card under her.

2nd Marine hEB01-017 does 100, and with Marine as oshi can archive all stacked holomem for +100, plus 100 special damage with 5 or more.

The 2-power oshi skill deals 50 special damage to a non-Debut back holomem, twice with 3+ cards stacked under your center.

Deck list

Tap any card to see it full size.

Oshi and holomem (32)
Support (18)
Cheer deck (20)
QtyCardTypeCard no.
1Houshou MarineOshihEB01-002
4Houshou MarineDebuthEB01-011
4Houshou MarineDebuthEB01-012
4Houshou MarineDebuthSD09-002
4Houshou Marine1sthBP02-032
4Houshou Marine1sthEB01-013
3Houshou Marine1sthEB01-014
4Houshou Marine2ndhBP02-033
1Houshou Marine2ndhBP04-038
1Houshou Marine2ndhEB01-016
3Houshou Marine2ndhEB01-017
4Harusaki NodokaStaffhSD01-016
4BearineEventhEB01-026
4Drawing StreamEventhBP06-089
1Playing with WaterEventhEB01-031
1So, That Makes You My EnemyEventhBP01-108
4Summer PCItemhEB01-025
3Red CheerCheerhY03-001
17Blue 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 43.1% of those games: tier D, #33 of 49. It won 18 of its 48 matchups (21 below 40%). These are AI-vs-AI results, not tournament data.

Best matchups

  1. Chloe holoX-lot82.0%
  2. Kobo Rainout78.2%
  3. Chihaya Fantastic Driver71.0%
  4. Hajime Banchou70.0%
  5. Riona FLOW GLOW Tiara68.8%

Toughest matchups

  1. Mio-oshi Baelz Elizabeth7.8%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 4.7 holomems a game. When Marine Seductress wins, it downs 3.1 holomems a game (vs 0.9 in its losses) and attacks with "Say, Could You... Get That Bit of Chocolate from My Lips?♡" from 2nd Houshou Marine (hEB01-017) more often (3.1 vs 1.4 times a game).
  2. Nene Energy Drink11.0%In its wins, Nene Energy Drink attacks with "We'll Snuggle under the Covers" from 2nd Momosuzu Nene (hBP09-088) 5.8 times a game, and attacks with "Mata-Nene" from 1st Momosuzu Nene (hBP04-084) 1.1 times a game, and downs 4.8 holomems a game. When Marine Seductress wins, it downs 4.6 holomems a game (vs 1.5 in its losses) and attacks with "Say, Could You... Get That Bit of Chocolate from My Lips?♡" from 2nd Houshou Marine (hEB01-017) more often (4.3 vs 2.6 times a game).
  3. Vivi Overflow Stall12.0%
  4. AZKi Frontier15.2%
  5. Subaru Oozora Police18.2%

vs Mio-oshi Baelz Elizabeth

7.8%

6% going first, 9% going second. Games last 10.6 turns on average (400 games).

Most wins come from taking the opponent's last life card (100% of wins). In a loss, the opponent usually takes its last life card (88% 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 4.7 holomems a game. When Marine Seductress wins, it downs 3.1 holomems a game (vs 0.9 in its losses) and attacks with "Say, Could You... Get That Bit of Chocolate from My Lips?♡" from 2nd Houshou Marine (hEB01-017) more often (3.1 vs 1.4 times a game).

Key cards

2nd Marine hEB01-017 (main attacker)

100 for 4 cheers; may archive all stacked holomem for +100; with 5+ archived, 100 special damage too.

Your finisher; stack cards, then cash them in.

Houshou Marine (oshi)

Stage: with a collab, your center Marine that bloomed this turn may bloom again. 2 power: 50 special to a back non-Debut, twice with 3+ stacked.

Collab every turn so you can double-bloom.

1st Marine hEB01-013

Collab: archive a stacked holomem to send a cheer.

The trained AI collabs it 7x as often for cheers.

1st Marine hBP02-032

Bloom: take a Marine from the deck.

Bloom it to keep the chain going.

Summer PC

Place a #Summer Debut from the deck (or take a #Summer holomem at 1 life).

Puts Debuts on stage.

Bearine

Marine oshi: draw 2; return a Marine to draw 2 more.

Draw power.

This deck does worse going second (57% vs 90% first). Going second, focus on getting a collab out so you can double-bloom.

Game plan

Turns 1–2

Early game

Collab and bloom right away.

  1. Play Summer PC and Harusaki Nodoka.
  2. Bloom 1st hEB01-013 and 1st hBP02-032 on turn 2.
  3. Collab debut hSD09-002, or hEB01-012 when going second.
Turns 3–4

Mid game

Double-bloom into a 2nd.

  1. With a collab, bloom your center twice in one turn.
  2. Reach 2nd hEB01-017 around turn 3.
  3. Collab 1st hEB01-013 for extra cheers.
Turn 5 on

Late game

Cash in the stack.

  1. Attack with hEB01-017 and archive the stack for +100.
  2. Use the oshi skill to snipe back 1sts and 2nds.
  3. Leave the other 2nds as backup; they hit much softer.

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 8 of its own turns.

Habit (per game)Trained AIGeneral AIWhat it means for you
2nd hEB01-017 damage681371Make hEB01-017 the attacker.
1st hEB01-013 collabs2.20.3Collab it for cheers.
Other 2nd Marine damage86243Don't stall on the weaker 2nds.
Total special damage290181Use the oshi snipe every turn you can.
2nd first bloom (your turn)2.62.8Double-bloom early.

Practice it

  1. In Match Lab's Player vs Bot, play against the Marine Seductress (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.