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Rumble Chess: how to read the 6 decks and what decides a match

Rumble Chess: how to read the 6 decks and what decides a match

· Oct 13, 2026Guide

This is the wiki's reading of Rumble Chess.

Full context

This is the wiki's reading of Rumble Chess. The numbers come from the game's official table (files 2.0.1021) and from cards the wiki has already checked. The play tips come from a video by a Brazilian YouTuber and are marked as the player's account when the wiki hasn't confirmed them.

THE MATH THAT MATTERS

  • Each deck has one synergy. A match draws 3 of the 6 decks and everyone buys from them.
  • Each Minion adds points to its own deck: 1★ is worth 1, 2★ is 2, 3★ is 4 and 4★ is 8.
  • The tiers are 4, 8, 12, 16, 20, 25, 30, 35, 40 and 50 points.
  • Our reading: 35 points is the realistic target. That's nine 3★ Minions from the same deck (36 points) or five 4★ (40). Points only count for each card's own deck, so splitting the board across three decks leaves all three on low tiers.
  • Cloud: raises the ATK of Minions in the Shop by 13 / 25 / 50.
  • Moon: enemies lose 30% / 46% / 65% HP when they enter the field.
  • Sun: Ready grants 8 / 15 / 30 Suncoins.
  • Lightning: aura of +16 / +30 / +60 ATK on all Minions.
  • Droplet: Ready gives +60 / +100 / +200 ATK to the Minion with the highest ATK.
  • Star: Ready gives +12 / +20 / +40 ATK to all Minions.
Details and source

WHAT EACH SYNERGY GIVES (25 / 35 / 50 points)

From tier 35 to 50 they all double, except Moon, which is a percentage and goes from 46% to 65%. In total ATK, the ones that add to every Minion deliver more on a full board: +20 on 9 Minions is 180, against Droplet's +100 on one. Droplet only pays off if that Minion multiplies the bonus.

DECK BY DECK

  • Cloud: the bonus lands on Minions before you buy them, so anything that scales with purchases gets strong. Limazito I gives +10% / 20% / 40% / 100% ATK to bought Minions (Aura not included) and Acorn Outlaw steals 90% of the Shop Minions' ATK when it enters. The player says the start is hard and the deck gets strong late.
  • Moon: a low-HP deck. Boom Shroom takes 4% of the Captain's max HP and, with HP below that, only attacks the front line (official text). The player runs Greenkeeper, which heals 2 / 4 / 8 / 20, to keep the bomb going. He says the deck does badly against Bosses; the synergy text mentions no exception, so that's his account.
  • Sun: two opposite paths. Hold Suncoins (Dragon Hoarder: +4 / 8 / 16 / 48 ATK per 5 Suncoins) or spend them (Lady Tulip: +2 / 4 / 8 / 32 per Suncoin spent in the round; Variant I counts per 3). Spudchant gives a free refresh and speeds up the Shop rotation. The player picks the path around round 7 or 8 and says it's a safe deck that enters slowly.
  • Lightning: a flat bonus loves weak Minions. Cabby Trainer's pups are born with 4 ATK, so +30 changes everything. The player cites Mister Pepi with Violet Magus, which fires 1 extra missile per Minion of the same ★ (official text), so keep the ★ matched. He didn't like the deck this season and says rivals already know it.
  • Droplet: put the +100 on a Minion that multiplies. A 3★ Guaca Sage gains +80% ATK on Ready, and Cashew Sage copies 100% / 300% of the highest ATK. The bonus goes to whoever has the highest ATK, so keep a clear leader: another Minion passing in front steals the bonus (the player warns about Pine Gangster too early). It's a one-card deck, and that's risky.
  • Star: a cost-3 deck. Turnipette gains +2 / 4 / 8 / 20 ATK every Ready, Pom Piper gives the same to 3 random Minions (Temp.) and Ghost Orchid steals 5% / 9% / 16% / 32% of the strongest enemy's ATK. The player says Tomato Twister takes long to arrive and isn't sure the deck is strong this season.

WHAT DECIDES IT BEYOND THE SYNERGY

  • Speed and slow. The player points out that the season has no area damage (his account). In that case Bardcore Onion (+4% / 8% / 16% / 48% ATK SPD on all) and Broc Presley (speeds up the highest-ATK Minion) matter even outside their deck, and so does Berrinetta's slow. Our reading: all six synergies stack ATK and speed multiplies ATK, so one speed card is worth it even on another deck's synergy.
  • Opening board slots. The player says each opened slot pushes the Shop toward higher costs (10% chance of cost 5 on the first, 20% on the second), so he doesn't open slots when he wants 4★ cost-3 cards. The wiki saw 100% cost 3 in round 1 and 90% / 10% in round 2. That fits his account, but we don't know whether the odds change per opened slot or just per round.
  • Variants and Sprouts, outside the match. According to the player, a common Variant takes about 40 Sprouts and a golden one about 100, and spending gems isn't worth it (10,000 gems for a golden one). We haven't checked these numbers.

WHAT THE WIKI DOESN'T KNOW YET

  • Whether opening slots changes the Shop odds or it's only the round.
  • Whether the Moon synergy cuts Boss HP.
  • How Camellia Clerk scales at 4★. The player describes ATK gained per Minion bought, and the text we have says +4 ATK to the next Minion bought.
Details and source

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Source: synergy table and card texts, game files (version 2.0.1021); decks seen in a match by me (Oct 9, 2026); play tips from a video by a Brazilian YouTuber (October 2026). The reading and the math are mine.