Summon Dice

ALegendaryRandom DiceRandom Dice 2

Deals no basic damage; periodically loses a pip to summon a random 1-pip die, and merging summons a deck die.

In Random Dice

In Random Dice 2

Tier rankings

SourceModeTier
AllClashPvPA
GamerTweakOverallA
GamesKeysOverallA
ConsensusA

Decks with Summon

Scope Combo (SCOPEBO)

Random DicePvP

Defensive high-DPS build. Scope lets Combo hit several targets, and Summon keeps the board full.

Source: neuralgamer.com

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Summon Combo

Random DicePvP

Summon feeds merges to build combo count while Bubble protects dice from skills. Needs Combo/Summon class traits. Assassin or Silence can replace Bubble.

Source: en.namu.wiki

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Medusa Tsunami

Random DicePvP

Medusa petrifies the board and Tsunami pushes back. Shield or Volcano can replace Growth against attack-dice decks.

Source: en.namu.wiki

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ix10 Hack

Random DicePvP

Hacks the opponent's early dice; weaker against decks that do not rely on dice skills.

Source: en.namu.wiki

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Predation attacker

Random Dice 2Co-op

Predation scales damage with kills, Decay amplifies damage taken, and Summon, Growth and Adaptation keep pips rising and the board tidy. Aimed at deep co-op waves.

Source: jpgamez.com

Gear starter

Random Dice 2Early game / general

Electric holds the early waves, Gear becomes the main damage, Alchemy buffs, and Summon and Adaptation keep merges flowing.

Source: ggene.site

Predation (Light)

Random Dice 2Co-op

The most-cited co-op deck in the five guides gcouponplay compared.

Source: gcouponplay.com

Electric (Summon)

Random Dice 2Co-op

Cheapest to unlock, needing only two tree branches.

Source: gcouponplay.com

YinYang alignment

Random Dice 2General

YinYang needs rows and columns lined up, so Switch is required for positioning.

Source: gcouponplay.com

Combo

Random Dice 2General

Combo grows with merges, Summon supplies merge material, and Saw Blade handles early waves. 'Crack' is not in any RD2 tree list we found and may be a mislabel.

Source: osworlds.co.kr

Gear (Saw Blade)

Random Dice 2General

Gear is the main damage and needs fewer merges than Combo, which suits beginners; Switch adjusts Gear positions.

Source: osworlds.co.kr

Atom support

Random Dice 2Co-op support role

Community support-role deck. No reasoning was given.

Source: gall.dcinside.com

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Other Legendary dice

Assassin Atomic Bastion Blizzard Bubble Combo Compression Devil Sword

Sources: randomdice.wiki.gg, randomdice.wiki.gg, namu.wiki, oslink.io, w.atwiki.jp, ggene.site, gall.dcinside.com