Kronii Warden of Time

Bloom fast, then let 2nd Kronii hit for 180 and take an extra turn with the SP.

ATier
82.5%Win rate vs the field
#22 of 49JP ranking
JPCard pool
CRound robin tier: 51.6% head-to-head, #24 of 49

How the deck wins

2nd Kronii hBP07-056 does 80 +100 with Kronii as your oshi, so 180 for 4 cheers, and her gift lets you bloom another Kronii during your turn.

Kronii's SP gives you an extra turn while a 2nd Kronii is in the center. The trained AI uses it in 80% of games; the general AI almost never does.

Going second, debut Kronii hBP07-050's collab lets you bloom your center on turn 1. 2nd Kronii hBP07-055's bloom gives Arts+50 to set up a big hit.

Deck list

Tap any card to see it full size.

Oshi and holomem (30)
Support (20)
Cheer deck (20)
QtyCardTypeCard no.
1Ouro KroniiOshihBP07-005
4Ouro KroniiDebuthBP01-092
4Ouro KroniiDebuthBP07-050
3Ouro KroniiDebuthBP07-051
4Ouro Kronii1sthBP01-094
4Ouro Kronii1sthBP07-053
1Ouro Kronii1st BuzzhBP07-054
1Ouro Kronii1sthBP09-063
2Ouro Kronii2ndhBP01-095
3Ouro Kronii2ndhBP07-055
4Ouro Kronii2ndhBP07-056
4Manager-chanStaffhSD01-017
1Borderline Evil RobotEventhBP07-094
4Ruler of Time -Promise-EventhBP07-097
1TotsumachiEventhBP03-088
3Friendly PCItemhBP05-074
4Normal PCItemhBP01-104
3Sub PCItemhSD01-018
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 51.6% of those games: tier C, #24 of 49. It won 25 of its 48 matchups (14 below 40%). These are AI-vs-AI results, not tournament data.

Best matchups

  1. Vivi x Su Lock v285.5%In its wins, it attacks with "Life Goes On" from 2nd Ouro Kronii (hBP07-055) 4.5 times a game, and attacks with "You're not ready for me." from 2nd Ouro Kronii (hBP07-056) 3.8 times a game, and downs 4.8 holomems a game. Vivi x Su Lock v2 wins more when it attacks with "Vivi is a Strong Defender!" from 2nd Kikirara Vivi (hBP09-069) more often.
  2. Kobo Rainout82.0%
  3. Risu ID Family78.8%
  4. Chloe holoX-lot78.0%
  5. NePoLaBo Teamwork75.5%

Toughest matchups

  1. Mio-oshi Baelz Elizabeth16.5%In its wins, Mio-oshi Baelz Elizabeth attacks with "It's not fun without you" from 1st Hakos Baelz (hBP07-045) 4.4 times a game, and downs 4.3 holomems a game. When Kronii Warden of Time wins, it downs 3.0 holomems a game (vs 1.0 in its losses) and blooms into 1st Ouro Kronii (hBP01-094) more often (4.6 vs 3.1 times a game).
  2. AZKi-oshi Chloe Lui Slot20.8%In its wins, AZKi-oshi Chloe Lui Slot attacks with "holoX-lot" from 2nd Sakamata Chloe (hBP02-040) 3.5 times a game, and attacks with "Chomp, Chomp, Chooomp!" from Debut Sakamata Chloe (hBP02-035) 2.0 times a game, and downs 2.6 holomems a game. When Kronii Warden of Time wins, it downs 5.0 holomems a game (vs 2.3 in its losses) and attacks with "You're not ready for me." from 2nd Ouro Kronii (hBP07-056) more often (2.7 vs 0.7 times a game).
  3. Matsuri Limited Rush22.0%
  4. Subaru Oozora Police26.0%
  5. AZKi Frontier26.0%

19% going first, 14% going second. Games last 10.2 turns on average (400 games).

Most wins come from taking the opponent's last life card (98% of wins). In a loss, the opponent usually takes its last life card (84% of losses).

In its wins, Mio-oshi Baelz Elizabeth attacks with "It's not fun without you" from 1st Hakos Baelz (hBP07-045) 4.4 times a game, and downs 4.3 holomems a game. When Kronii Warden of Time wins, it downs 3.0 holomems a game (vs 1.0 in its losses) and blooms into 1st Ouro Kronii (hBP01-094) more often (4.6 vs 3.1 times a game).

Key cards

2nd Kronii hBP07-056 (main attacker)

You're not ready for me.: 80 +100 with Kronii oshi; may move a cheer to another Promise holomem. Gift: bloom another Kronii at the start of your performance phase.

Your finisher; the trained AI does almost twice the damage with it.

Ouro Kronii (oshi)

2 power: draw 2 from the bottom of the deck and archive 1. SP 4: with a 2nd Kronii in the center, take an extra turn.

Save 4 power for the extra turn, around turn 6.

2nd Kronii hBP07-055

Life Goes On: 90. Bloom: a Promise holomem gets Arts+50 this turn.

Bloom it to power up hBP07-056 for a knockout.

1st Kronii hBP01-094

Bloom: search a cheer and attach it to a Promise holomem.

Your most-played early bloom.

Debut Kronii hBP07-050

Collab: going second on turn 1, bloom your center Kronii with a 1st.

Lets you bloom on turn 1.

Ruler of Time -Promise-

All-Promise stage: take 2 Promise holomem; if behind on life, Arts+20.

Your main search card.

Game plan

Turns 1–2

Early game

Bloom as early as you can.

  1. Going second, collab debut hBP07-050 and bloom your center right away.
  2. Bloom 1st hBP01-094 for a free cheer.
  3. Play Ruler of Time to find your 2nds.
Turns 3–4

Mid game

Get 2nd hBP07-056 in the center by turn 3.

  1. Bloom the 2nd around your 3rd turn.
  2. Use 2nd hBP07-055's bloom for Arts+50 on a knockout turn.
  3. Collect holo power for the SP.
Turn 5 on

Late game

Take the extra turn.

  1. Hit for 180 with hBP07-056 each turn.
  2. Fire Warden of Time around turn 6 for two attacks in a row.
  3. Use the 2-power skill to dig if you run low.

What the trained AI does

In 60 test games the trained AI won 82%, against 67% 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 hBP07-056 damage499262Make hBP07-056 the main attacker.
2nd hBP07-055 damage368472hBP07-055 is better for its bloom boost.
Extra-turn SP used80% of games13% of gamesAlways plan for the extra turn.
First 1st bloom (your turn)1.82.1Bloom on turn 1 when going second.
2nd first bloom (your turn)2.93.1Get a 2nd out by turn 3.

Practice it

  1. In Match Lab's Player vs Bot, play against the Kronii Warden of Time (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.