They got the same elements I know, but which is more worthwhile in terms of power?

@christy-osua I am doing both. Depends on my breeding results.

They both breed the same way. Feed your duplicates to 15 and recall them in order to empower these strong legendary dragons. Apocalypse will defeat Abyss in a head to head fight. Apocalypse is strongest against nature and war dragons but also most vulnerable to sea and war dragons. Abyss is strongest against dark and electric dragons, but conversely is weak against nature and also dark dragons. These dragons are great to empower by breeding cool fire and gummy in the sanctuary and recalling the duplicates. Statistically they are the same, be sure to train their second element first because it is their strongest attack.