Forum:Tytannial, princess of camellias effect

hello, I was just curious if anyone had an answer to my question. Tytannial, Princess of Camellias' effect says that by tributing one plant-type monster you control, negate and destroy the activation of a spell, trap, or effect monster's effect. it also states that she can tribute herself as well as that this is a quick effect. The card rulings page specifically states "this effect can be activated during the damage step". With no other information on its activation time, does this mean it can ONLY be activated during the damage step? or is it saying in addition to being a quick effect as stated on the rulings page that it can be activated during the damage step. any feedback would be appreciated. thank you