Dragonology

When this card is played, all creature cards
owned by this player deal double damage.
"It is difficult to know how exactly the
Wizard Craze began, but it was a huge
part of the cousins past. Jenna and Cheyenne,
along with their trusty guides, A Book of Wizard
Craft, Dragonology, The Wizardology Handbook
and every other wizard and dragon book
available at the library, started a Wizard Gang
of sorts."