Cactus Game Design Message Boards

I think he means that specific battle. So an ITB card played in a side battle wouldn't interrupt cards in the main battle. Not 100% on that, though.

"The" implies that it's singular.  INE.  Though I have seen it ruled that a FBTN card wouldn't negate the side battle.  (fairly sure that was erroneous..)

My cheat sheet has the proper definition of interrupt (that it only interrupts stuff in battle) so you can point people to that for clarification if you want since the REG is erroneous.