Pure Dragon

Breeding
Breeding 2 Legend Dragons may result a Pure Dragon. It does not always work, and it takes 48 hours or two (2) days to incubate and 48 hours or two (2) days to hatch. To breed a Legend Dragon, breed a Rare Hybrid with a Rare Hybrid. Once again, does not always work.

Battle
The Pure Energy attack, which is the Pure Fire element, is highly effective on the Fire Type Dragons, so I assume that Pure + X is affective against X.