I just finished a duel against Yusei but it was weird. I got out Armory Arm and equipped it to his stardust and rammed my colossal fighter for the OTK but the game didn't recognize that the Armory Arm was supposed to do damage to Yusei unless I didn't activate Colossal Fighters effect. Way to drop the ball on konami's part. I haven't retested this but has anyone else had trouble with combos like this?
Here's a link to the explanation from the wiki if anyone doesn't know what I'm talking about.
The idea is that Armory Arm needs to have the monster it destroyed in the Graveyard in order to check its ATK during resolution. If the monster is no longer in the Graveyard, the ATK cannot be checked and does not resolve successfully. That's where the current rulings stand.
You can still do it, but you'll need a second Colossal Fighter in your Graveyard to alternate between.
http://s389.photobucket.com/albums/oo337/katgirlfeli/Touhou%20Yugioh%20Cards/ Touhous? In my children's card game? Hell yes!