Starter Deck: Poseidia Lagoon

thatsilverbean thatsilverbean 442 views Jan 29, 2026 Updated Feb 07, 2026
Blue Budget
Playtest Purchase
Deck Primer

This is a hypothetical starter deck featuring Ryugumon! In the construction of this starter deck, I had a few rules:

-No cards from other existing starter decks

-No cards from after the release of the first set that the archetype was introduced in

-Try to align the chosen cards with the archetype as much as possible

-Follow the structure of ST17 and ST18 in terms of card ratios: (14) Lv.3, (10) Lv.4, (10) Lv.5, (6) Lv.6, (4) Memory Setting Tamer, (4) Archetype Specific Option Card, (2) Memory Boost

-No

...

This is a hypothetical starter deck featuring Ryugumon! In the construction of this starter deck, I had a few rules:

-No cards from other existing starter decks

-No cards from after the release of the first set that the archetype was introduced in

-Try to align the chosen cards with the archetype as much as possible

-Follow the structure of ST17 and ST18 in terms of card ratios: (14) Lv.3, (10) Lv.4, (10) Lv.5, (6) Lv.6, (4) Memory Setting Tamer, (4) Archetype Specific Option Card, (2) Memory Boost

-No Promo cards

For this deck, I chose to break the 2nd rule and add 2 BT22-018 Sangomon because I felt that it was better to avoid potentially whiffing Lv.3 Digimon in a card search.

Main Deck (50 cards)

Crabmon x4 Gizamon x4 Sangomon x4 Sangomon x2 Shellmon x4 Lanamon x2 Xiquemon x4 Huankunmon x4 MarineBullmon x4 Huankunmon x2 Ryugumon x2 Xiangpengmon x4 Blue Memory Boost! x2 Wadatsumi Purification x4 Yao Qinglan x4

Egg Deck (4 cards)

Puyoyomon x4

Deck Breakdown

Type Breakdown

Digimon 40
Option 6
Tamer 4

Level Breakdown

Level 3 14
Level 4 10
Level 5 10
Level 6 6

Trait & Block Count

Count of traits and blocks for competition qualification

Traits
LIBERATOR 24
37.5% of trait cards
Mollusk 16
25.0% of trait cards
Aquatic 6
9.4% of trait cards
Crustacean 4
6.3% of trait cards
Sea Animal 4
6.3% of trait cards
Avian 4
6.3% of trait cards
Holy Bird 4
6.3% of trait cards
Fairy 2
3.1% of trait cards
Blocks
Block 01 6
11.5% of block cards
Block 02 6
11.5% of block cards
Block 03 2
3.8% of block cards
Block 04 36
69.2% of block cards
Block 05 2
3.8% of block cards

Play Cost Curve

Distribution of play costs in your deck

3 Memory 16 cards
16
32.0% of cards
4 Memory 8 cards
8
16.0% of cards
5 Memory 10 cards
10
20.0% of cards
7 Memory 8 cards
8
16.0% of cards
8 Memory 2 cards
4.0% of cards
12 Memory 2 cards
4.0% of cards
13 Memory 4 cards
4
8.0% of cards

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