Karakuri Ninja mdl 339 "Sazank"

Card text

This card must attack if able. When this face-up Attack Position card is selected as an attack target, change it to Defense Position. When this card is flipped face-up, select 1 face-up monster on the field, and send it to the Graveyard. During the turn this card is flipped face-up, it can attack your opponent directly.