Batomon Showdown events repeat on Day 3, Day 6, and Day 9 of every run. Day 3 offers Dragon's Nest, Bug Collector, and Rainbow Berry as the three named reward choices. Day 6 and Day 9 repeat the same event pool. The v1.0 patch added Traveling Merchant as a weekly rotation and Fossil Discovery as a side event. Pick the event reward that matches your trainer's tempo, scaling, or economy plan; picking the wrong reward is one of the fastest ways to lose tempo in a run.

When events fire and what they offer

Batomon Showdown events fire on Day 3, Day 6, and Day 9 of every run, and they are the run-defining decision moments in async PvP. Each trigger offers three to four reward choices that change what your team can do for the rest of the run, so the wrong pick costs tempo immediately rather than at the next match. Day 3 is the first event you will see, and the three named reward choices from the ranked-gameplay guide are Dragon's Nest, Bug Collector, and Rainbow Berry. Day 6 and Day 9 repeat the same event pool, which means you will see the same reward names multiple times in a long run and can pivot your team plan between the first and last event. The v1.0 patch added Traveling Merchant, which runs as a weekly rotation outside the Day 3 / Day 6 / Day 9 cadence, and Fossil Discovery, which is a side event that triggers off board state rather than the day counter.

Day 3 reward picks by trainer archetype

Day 3 eventPick if your trainer isSkip if your trainer is
Dragon's NestScaling trainer - the payoff extends the late-game stateTempo trainer - the Dragon's Nest payoff rarely fires early
Bug CollectorTempo or economy trainer - Bug count compounds earlyPure scaling trainer - Bug Collector falls off past turn six
Rainbow BerryAny trainer that lacks payoff - flexible catch-allAlready committed trainer - Rainbow Berry is a default pick, not an upgrade

Dragon's Nest: scaling payoff for late-game trainers

Dragon's Nest is the Day 3 reward that rewards scaling trainers. The payoff from Dragon's Nest only fires when your team reaches the late-game phase of a match, so a tempo trainer who wins or loses by turn six will rarely trigger it. If you paired a scaling trainer with a comp like Rock Pebbler or Shock Bees (see /best-builds), Dragon's Nest is the Day 3 pick that extends the same payoff past its first trigger and compounds your late-game value. The common mistake is picking Dragon's Nest on a tempo comp: you hold the Dragon's Nest payoff in your hand while the opponent closes the match, and you lose the tempo you would have gained by picking Bug Collector or Rainbow Berry instead.

Bug Collector: tempo and economy payoff for early-game comps

Bug Collector is the Day 3 reward that compounds Bug count, which means it pays off for tempo and economy trainers whose comps lean on Bug creatures. The named Bug comps in /best-builds (Hyperbug with Bug Velocect and Formiqueen) get the most out of Bug Collector because Bug count is already the comp's engine. Pick Bug Collector on Day 3 if your trainer is tempo or economy and your comp already commits to Bug creatures; the payoff triggers on the early turns of the match and keeps compounding through the mid-game. The common mistake is picking Bug Collector on a non-Bug comp: the payoff never lines up with the rest of your team's tempo, and you spend the rest of the run waiting for a trigger that does not come.

Rainbow Berry: the flexible default

Rainbow Berry is the Day 3 reward that does not commit to any one payoff curve. The ranked-gameplay guide flags Rainbow Berry as the right pick when you have not committed to a single tempo or scaling plan, or when your trainer does not yet have the leveled pieces to make Dragon's Nest or Bug Collector worth their setup cost. Rainbow Berry is the default pick if Dragon's Nest and Bug Collector are both wrong for your current trainer and comp, and the cost of picking it is that you may replace it later when a more specific reward shows up on Day 6 or Day 9. Treat Rainbow Berry as a 'keep the run alive' choice rather than an upgrade, and revisit the named-reward picks when you see the same event on Day 6 or Day 9.

Day 6 and Day 9: same events, sharper picks

Day 6 and Day 9 repeat the Day 3 event pool, so you will see Dragon's Nest, Bug Collector, and Rainbow Berry two or three times across a long run. The right move on Day 6 is to re-evaluate the same three picks with the trainer and comp you actually have, not the trainer and comp you queued on Day 3. If your comp has committed to Bug creatures by Day 6, Bug Collector is the higher-value pick than Rainbow Berry. If your scaling trainer has finally leveled enough to trigger the Dragon's Nest payoff, Day 6 is the right time to take it. Day 9 is the last guaranteed event trigger, so the Day 9 pick should be the one that wins the run's hardest matchup; if your trainer is still uncommitted by Day 9, treat Rainbow Berry as the safe choice and stop chasing a payoff curve your run cannot trigger.

v1.0 additions: Traveling Merchant and Fossil Discovery

The v1.0 patch added two event sources outside the Day 3 / Day 6 / Day 9 cadence. Traveling Merchant runs as a weekly rotation; the merchant offers a different inventory each week and is the right place to spend the currency you have been saving on trinkets that your current comp cannot yet drop. Fossil Discovery is a side event that triggers off board state rather than the day counter, and the payoff is a piece that fits a specific Batomon archetype. Both additions are listed in the ranked-gameplay guide and the beginner guide as named v1.0 changes, so they are stable for the current patch and should not need a re-evaluation every week.

Sources

Day 3 / Day 6 / Day 9 cadence, named reward choices (Dragon's Nest, Bug Collector, Rainbow Berry), and the trainer-pairing criteria come from the gameplay.tips Batomon Showdown ranked-gameplay guide. The v1.0 Traveling Merchant and Fossil Discovery additions come from the 9puz Batomon Showdown beginner guide.

FAQ

When do Batomon Showdown events fire?

Events fire on Day 3, Day 6, and Day 9 of every run, and each trigger offers three to four reward choices. The v1.0 patch added Traveling Merchant as a weekly rotation and Fossil Discovery as a side event outside the Day 3 / Day 6 / Day 9 cadence.

What should I pick on Day 3?

Pick the reward that matches your trainer's tempo, scaling, or economy plan. Dragon's Nest for a scaling trainer, Bug Collector for a tempo or economy trainer whose comp commits to Bug creatures, Rainbow Berry as the flexible default when neither named payoff fits your current team.

Should I pick Dragon's Nest or Bug Collector on Day 3?

Pick Dragon's Nest if your trainer is scaling and your comp reaches the late-game phase. Pick Bug Collector if your trainer is tempo or economy and your comp commits to Bug creatures. The wrong pick costs tempo immediately rather than at the next match.

What is the Traveling Merchant in Batomon Showdown?

Traveling Merchant is a v1.0 weekly-rotation event that runs outside the Day 3 / Day 6 / Day 9 cadence. The merchant offers a different inventory each week and is the right place to spend saved currency on trinkets your current comp cannot yet drop.