Talk:Undefeatable, Setsujishi/@comment-5140545-20150618105052/@comment-25600444-20150618122109

Then his secret unwritten effect activates.

"When this card is destroyed by an opponent's card (either by effect or batte), this card and all other copies in your deck and Buddy Zone are now treated as "Big Fat Liar, Setsujishi" for the remainder of the duel"