In DragonVale, most of the opposite element dragons can’t breed directly, like Metal and Plant, or Fire and Water, etc.
Most of these can be bred however if one of the dragons is a hybrid. For example, the Blue Fire Dragon can be bred by mixing a Fire Dragon with a Cold hybrid like the Storm Dragon.
Here is a list of opposite element dragons you can attain by breeding hybrids.
Opposite Element Dragon Breeding in DragonVale
Blue Fire Dragon – Breed a Fire Dragon with a Cold hybrid. Fire + Storm is a popular combination.
Current Dragon – Breed a Water Dragon with a Lightning hybrid. Water + Storm, Water + Magnetic, etc.
Dodo Dragon – Breed an Earth Dragon with an Air hybrid. Earth + Chrome, and Earth + Blazing are popular combinations.
Ironwood Dragon – Breed a Plant Dragon with a Metal hybrid. Plant + Chrome is a popular combination.
Malachite Dragon – Breed a Metal Dragon with a Plant hybrid. Metal + Cactus is a popular combination.
Plasma Dragon – Breed a Lightning Dragon with a Water hybrid. Lightning + Fog, Lightning + Rust, etc.
Frostfire Dragon – Breed a Cold Dragon with a Fire hybrid. Cold + Firefly is a popular combination.
Sandstorm Dragon – Breed an Air Dragon with an Earth hybrid. Mud + Air is a popular combination.
More DragonVale Breeding
Check out my other guide if you’re looking for a complete dragon breeding guide for DragonVale.