This card is useful since your opponent will often attack your karakuris with low attack monsters, betting on the position change. Since this negates the effect as well as boosts attack this almost certainly leads to your opponents monsters suiciding into your attack position Karakuris
If your opponent attacks an Attack Position "Karakuri Muso mdl 818 "Haipa"", chain this card to Haipa's battle position changing effect. Haipa will not only remain in Attack Position, but remain there with 3100 ATK.
If your opponents controls only monsters with less than 1900 ATK, you can use this during their turn to prevent "Karakuri Komachi mdl 224 "Ninishi"" from changing to Attack Position.