why not get nashors on tf now

tf is by far my favorite champ, because he was very hard to learn for me. with the season 6 changes coming and ap items getting increased prices why not build nashors on tf? i know that you shouldn't just stand there and auto as tf because you are squishy, but it helps you auto between your stun and your q, and if you are fast enough you can get 2 autos off during the stun duration. it also gives cdr and is very cost efficient. not a hundred percent sure but i think that the bonus damage of the nashors applies on tfs w and e, but im not sure. overall it seems like a good item on him right now, and if it does apply the bonus damage on his w and e then that gives you a bonus ap scaling on the two moves. i would really appreciate feedback, especially to know if im right or wrong.