|Type||Elemental · Hybrid · Rare Hybrid · Legend · Exclusive|
|Element||Terra · Flame · Sea · Nature · Electric · Ice · Metal · Dark · Light · War · Pure · Legend|
For combat it is key to know the primary element of a dragon, so you can maximize each attack.
|High (2x)||Low (0.5x)||No Effect|
A dragon's Secondary Element has no effect on battle damage. Secondary(/Tertiary) Elements enable a Dragon to have alternate attacks. This is why Rare Hybrids are valuable in battles -- they allow the Rare Hybrid to be immune to an Element and to be able to deliver critical damage at the same time.
The only Rare Hybrid with the Primary Element Terra is the Armadillo Dragon.