Play the matchup.
Prove the theory.
A personal lab for turning theory, testing and ranked games into repeatable decisions. RG Luffy OP16.5 is the first and only live deck space. G Mihawk is next in development, with more decks arriving as the application evolves.
YUTA ARCHIVE 001
YUTA ARCHIVE 002
WHITE COAT 003
The lab will
answer back.
RIK4 is the competitive memory behind the Companion. She connects games, decklists, matchup theory and original player notes so a testing session can teach the player, the coach and the whole team.
& Knowledge Archive
Not a generic chatbot and not a replacement for experience. RIK4 is a lightweight conversational layer grounded in the evidence created inside the lab.
PRIVATE COMPETITIVE INTELLIGENCEAsk the lab.
Signed in players can now ask focused RG Luffy questions. RIK4 uses the current matchup map and live testing sample, then labels weak evidence instead of pretending certainty.
Ask me about RG Luffy matchups, play order, sequencing or what the current testing sample suggests you should test next.
Walk into coaching with a case file.
The player arrives with more than a decklist and a vague feeling. The coach sees the sample, the habits and the decisions that deserve attention before the session starts.
RG LUFFY
OP16.5 · 25 game sample
Start with the games that lasted beyond the first closing window.
The example sample shows disciplined early resource management, but weaker conversion once the game reaches repeated 9 and 10 DON!! turns. Review the losses where board advantage did not become a clean two turn clock.
Your room. Your data. Your conclusions.
Create an invite only testing group where every member keeps a personal log while contributing to a shared competitive memory.
Controls invitations, roles and what the team can see.
Games, notes and decklist versions remain linked.
Answers questions without hiding the source material.
Starts from evidence instead of spending the session reconstructing it.
What is real now. What comes next.
Testing core + Ask RIK4
Accounts, personal logs, matchup maps, analytics and the first authenticated RG-only assistant on site and Discord.
Private team workspaces
Invitations, roles, shared decklists and evidence scoped to the testing group.
Coach Mode
A sourced pre-session brief that turns permitted testing evidence into the shortest useful coaching agenda.
Private intelligence only works when the player stays in control.
- RIK4 must show which games, notes or decklist versions support an answer.
- Personal notes remain private unless the player explicitly shares them with a team or coach.
- Small samples are labelled as weak evidence. RIK4 asks for more testing instead of pretending certainty.
- The original comment remains visible. The system can summarise it, never rewrite the player’s history.
Play the matchup.
Let the lab remember.
R4Valerio “HZOV4”
I am Valerio, better known as HZOV4. I am from Rome and I have been playing One Piece Card Game since OP02.
I like decks that reward planning, matchup knowledge and small decisions made well. My routine is simple: study the theory, play a lot of ranked games, take notes and keep improving the list.
BY Luffy has been my favourite deck. Nami is the deck I have brought to events most often lately, but now I am fully committing to RG Luffy for OP16.5.
Results
It is not much, but it is what it is. Three Top 64 finishes are a decent start, never the destination. I am honest about where I am, and I am aiming much higher.
Back to back.
Two Serial Yamato wins.
The second title ended with a Nami mirror. I brought Sky Island because it gave me the tools I wanted for that exact fight.
5c Luffy kept the pressure high. Eight total copies of 7c Robin made the mirror much more consistent.Original result post ↗
Top 64.
Lille Offline Regional.
Nami returned with the Thriller Bark package for one of the largest fields in Europe.
8c Gecko Moria is OP14 104. The yellow 4c Perona is OP14 111.
Top 64.
Online Regional.
A black and yellow run built around the classic graveyard value engine.
8c Gecko Moria in standard art. 4c Kuzan in the OP02 alternate art.
Top 64.
Seville Offline Regional.
A low curve red list that turns precise sequencing into repeated pressure.
4c Luffy OP12 015 and 2c Luffy OP01 024, both in alternate art.
OP16.5 LIST UPDATE · 11 AUG 2026Four Nika buildOPEN THEORY NOTE
Current core: 0 Bonney · 4 Nika · 4 Brook.
Mirror and Mihawk demand more Nika.
7c Nika is a premium answer in the RG mirror and against Mihawk builds using 7c Shanks and 9c Mihawk. Hard drawing four Nika and four Brook is worth more than spending early DON!! on Bonney searches.
Stay at four life.
Nika leaves the leader at a 5k base for the turn. Preserve every early life so repeated Nika hands remain playable and the opponent cannot force you away from the Nika line.
Spend less DON!! searching.
Minimise early searches and leave maximum DON!! active to protect life. 1c Nami remains worthwhile because she improves Nika; 1c Bonney is usually too expensive unless the curve is missing.
Original comments are available .
My ranked testing log
PRIVATE ACCOUNTSIGN IN TO SYNCTesting performance, at a glance.
Your personal results appear first. Community players become selectable after seven recorded games.
Add a matchup back or change the sample.
Choose a recorded matchup to calculate the sample.
Your cumulative win rate will appear here.
SOON
Mihawk analytics will activate when the deck space and its first testing records go live.
Every recorded ranked game. One testing archive.
Open the complete HZOV4 playlist and watch the matchup theory become real decisions on the simulator.
Control room
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READY