Tristana's buff questions....

So got a Q buff... And Now that Im trying new things instead of my old.. -> route...

So someone once told me.. "Oh on tristana is so OP!" I had my doubts.. I googled it to see what other people had to say. Appearently the shive passive combined with thristana's E passive is what makes it OP. So I gave it a try... it actually did pretty decent, but we ended up losing game in the long run but i cannot doubt how strong it actually seemed...

now with the Q buff.. im cought just completely questioning everything I ever used to build.. (Don't you hate this?)

Like now that Q's cooldown can be by a max of 5 seconds... what else can I do?

Would perhaps taking be better then on tristana now?

What about other cooldown related items? would it be worth giving up something a "normal" ADC builds, how will some of these effect me in the long run?

UGH I hate this, but I love it at the same time its like Options everywhere to explore to try to find what could be more OP then the other! Anyone else ever have the same thing?

New question.. If Shiv Rush is OP with tristana's Passive.. How can this now effect Lauden's Echo? (Ill test this in a full team with friends later who will accept me as an AP trist Wish me luck! :3)