Board Thread:Questions and Answers/@comment-10529799-20130606232336/@comment-10259858-20130609031036

tower event: a climbing event where there is 200+ floor which you need to investigate to get to the next floor, in some floors, there is a guardian ghost where once you defeat them, you will 100% get them. Good to farm 4*-5* easily despite being a free player (to get ranking, you need to investigate as much as you can to gather as much item in that event, which is why this event is consider as the place where stamina is a point you need to increase to get ranking)

En Garde: a fight between all ghost agents to get victory point (VC), the VC can be traded for 4* and above card from dora swap shop. I'm not sure about how the VC get is determine, but as you can hit more, you get more VC, atk spirit is needed to gather as much VC to trade for the best card available, no ranking available in this event. (few SW might be needed in order to get the top daemon)

Conquest: the most difficult event at the moment, consist of fighting againts a daemon from lv 1-200/more. Before alice, conquest is rather easy to get the 5*, but since alice events, the conquest become as hard as we know that only high level player or cash player can reach lv 100+. A lot of SW is needed in this event which usually not favorable if you do not look for any cards in the event and the reward from below 99 usually only useful for newcomer but difficult to be get for newcomer (except lv 25-50 which still considerably quite easy with a few max cards)

more info: http://ayakashi-ghost-guild.wikia.com/wiki/Event_Tips