Only 1 "Amazoness Tiger" can exist on your side of the field at a time. Increase the ATK of this monster by 400 points for each monster on your side of the field that includes "Amazoness" in its name, or is named "Amazon Archer". As long as this card remains face-up on the field, your opponent cannot select another monster on your side of the field that includes "Amazoness" in its name, or is named "Amazon Archer", as an attack target.