by Boop » Wed May 14, 2014 7:55 pm
All demons gain x3 attack.
Edit: Although not directly related to your question, yes you should get it. Two of the Guild War cards which have a large amount of game time usage are Bahamut and Lucifer (Solomans Difficult). Tree of Life is starting to prove useful, but is still out-shined by another card.
Dragon Era - Boop - an80e3 - "Get on with the job"