Looks like (for those of you going) AEG has decided that IG3 will be gen-con legal. They have produced a printable spoiler set:
http://www.l5r.com/images/IG3.pdf and said that IG3 will be available at gen-con for people to use.
Rar.
So onto some specific non-prior spoilerd cards that might be of use for crab from the above:
Succumb to Vice
* gc
Limited: Bow and dishonour your performing personality with one or more sake tokens, and pay a Gold cost equal to the targeted unit's total Gold cost: Destroy a target unit.
'insert flavour text'
2 fv
Bars will be happy with that one I think. Seriously worth considering splashing in Tsubo the drunk (or whatever his name is)/sake force bump card and the above into a berserker deck. This plus Impossible Force looks to be some very very nice limited control for us (since berserkers care not for being dishonoured!)
Fearsome Mempo
+3F -1C
3 gc
Cursed
Reaction: After engaging in a battle: Give -2F to a target personality or Follower opposing this card
'Flavour text'
2 fv
I like this one. I like it because +3f for 3g is good. The reaction is a bit meh (but tempofree) but I can tell the -1c is going to get annoying with all those crane duelists out there (along with the chihate terrain etc).
Uhm, think all the cards have been spoiled in the link above, feel free to have a look


Now who says killing your own units is a bad thing 