User blog comment:Miskos3/Fairy Tail 520: Dragon or Demon, Review/@comment-4933386-20170205092919/@comment-7418318-20170209063005

We also haven't seen a purely 2nd Gen DS absorb an element different from their own and get a dual elemental mode out of it, so being confined to just that element of the lacrima itself might be another drawback.

Though since we haven't even seen Cobra, Laxus or Serena even attempt to do so, we don't have any actual proof on that, neither for nor against.