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Sinomorphs were released on May 21, 2017, alongside Zyumorphs as part of Dragon Cave's 11th birthday celebration. They do not possess egg or hatchling forms, and the adults must be summoned via a Breed Specific Action available through collecting a set of six different Zyumorph adults (not to be confused with the Summon BSA related to Guardians of Nature).

It is possible to have multiple Sinomorph dragons; however, only one can be summoned per set of six individually different Zyumorphs. If available, the option to "Summon" will appear on the Action pages of any unused zyumorphs. Once selected, the dragon whose action was chosen, as well as one of each remaining color of the first-grown available adults on a user's scroll, will be displayed on the action screen. Any group of 6 that have already Summoned a Sinomorph will have the BSA disabled on their Actions page, as opposed to the BSA not being present on the Actions page. The BSA is always successful,[1] and whether the Sinomorph is male or female is not totally random; the higher the proportion of a particular gender in the set, the higher the probability of summoning a Sinomorph of that gender, though there is no way to fully guarantee the outcome.[2]

Because of the unique way in which a Sinomorph is acquired, these dragons do not have stats for Views, Unique Views, or Clicks. Its "Grew Up On" date is the date it was summoned. Breeding Sinomorphs produces either their partner's breed of egg or Zyumorph eggs- which variation of Zyumorph is produced appears to be random.

When sorted by "Breed", this dragon sorts as "Sinomorph". If still using the old Legacy Breed Name Sort, these dragons sort as "Megazord", between Magma Dragons and Melismor Dragons on a user's scroll.

Official descriptions[]





Mature hatchling[]



Far and away one of the most enigmatic of dragon breeds, the Sinomorph is shrouded in near-complete mystery. While the exact conditions that herald its arrival are not certain, it is said to only appear when called upon by all six Zyumorphs. Record of its existence may be limited to folklore and ancient legends, but recent sightings seem to suggest this storybook behemoth may truly walk the lands of Valkemare. If the stories of the past are to be trusted, its appearance serves as a beacon of light in the face of looming calamity.

Sprite artists[]


Series Egg Hatchling Mature Hatchling Adult

- - - Sinomorph adult.png

Encyclopedia entry[]

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  • Before release, there was a change from this breed's name "Synomorph" to "Sinomorph" which was suspected to be a typo.[3]

Additional information[]

Zyumorphs don't create a Sinormorph, they call upon one which already exists, essentially awakening a dormant force in times of peril. For that reason, it is an adult when Summoned.
PieMaster (Forum Post)
  • Regarding the breed's name:
IIRC, I proposed "synomorph" (using the prefix "syn-" for the dragon i.e. "together") and that's what PieMaster counter-proposed.
TJ09 (Forum Post)