A idea for a poking team comp

I've been trying to create a team comp for me and some friends for a poke and sieging team. I really want to know if it is good or bad or whatever so please leave your thoughts. There is nothing worse than getting no comments at all on your posts as you have absolutly no idea what people think of it. So even if you think this team comp sucks, comment why it does and it'll help me and my friends greatly

Caitlyn or Sivir for adc Janna for support. Xerath mid NIdalee or Gnar top Nocturne, NIdalee or kha'zix jungle

My thoughs are that Caitlyn or sivir, Xerath and Nidalee or Gnar has very strong long range poke and damage. Janna's ultimate would be used to disengage if the enemies try to engage and nocturne and kha is basicly there for engaging and cleaning up after we've poked them down engough. I think it works well as both Cait, Nidalee and Kha has good escapes to use after Jannas ulti. And Xeraths and Jannas Q can be used to cc remaining chasers.

That was the short summery of my team comp idea, if you want a much more detailed version of my thoughs on each champions roles, they are the following:

The big diffrence between Noc and Kha is that Noc has a better engage with his ulti but he lacks anyway to get out aside from just running away with his Q. Kha's enage is weaker since he doesn't have as long range on his leap as on Nocs ulti but thx to it not needing a target and the reset he has a more reliable disengage. However it may be easier for a team to follow up on Noc as he has cc in form of a fear but Kha doesn't have anything like that exept the slow on his passive. Both got decent poke with Nocs Q and Khas W, the upside to noc is that his scales with ad and Khas scales with ap so it'll deal more damage. The spell shield can also be usefull for disengage to avoid cc. NIdalee would be completly diffrent though as rather than staying back untill they're low enough to the point that we can just clean up, she would poke much more with her spears and would then be able to go in with her cougar form for clean up too. Altough Nocturne or Kha may be more reliable at cleaning up as their engages have longer range and have some form off cc even if its just a slow. However Nidalee would provide more utility with her traps as wards and her heal.

NIdalee i have already mention. She would just have strong poke with her Q and good disengage with her couger form. The team would also be able to sustain potential counter poke easier with nidalee's heal. And her bushwack can be used to avoid getting flanked by gaining vision. Her couger form could also be used to clean up if Nocturne or Kha was not choosen, are not currently present or need help. Gnar is a bit diffrent. He would poke with his Q and his passive max hp dmg bonus if he got the chance (even though it would be risky as he'll have to walk up to basic attack range) and dissengage with his leap. He would continue with this untill he is ready too transform. If the enemy team is weakend enough he would do is trade mark double leap in as he transforms into Mega gnar and then take a shit upon the enemy team with his cc. As my team has a lot of AOE dmg (Xeraths q, e and r, Caitlyns q or sivirs q and w and nidalee's w and e in cougar form) they would be able to absolutly dump on the enemy if Gnar manages to get off a good ultimate.

Cailyn and Sivir is kinda the same as Nidalee; Both Caitlyns and Sivirs Q for poke and E for disengage. Caitlyns W can be used either as improvised wards or be placed in a defensive position to hinder engagement, while Sivirs can dish out more damage. Caitlyns ulti can also be useful for picking off anyone who they managed to get low engough while sivir is a more safe option do to her movement speed giving ulti.

Xerath role is also kinda the same as caitlyns or Sivirs and nidalees. Q and W for harras and E for disengage. Xeraths Ultimate can also be used for picking of low healths similar to Cailyns ultimate The Xerath player have to be careful when using this ultimate as it locks them in place and they are weak to an engage while using it.

Janna is possibly the most important part of this team as no one can really do what she does. Nidalee, Caitlyn or Sivir and Xerath has the potential to poke, both Noc or Kha and Nidalee in her cougar form can clean up in melee range and both cait and Xerath can pick off weak targets from afar with their ultimates or just basic abilities. Also both caitlyn or sivir and Kha or Noc kan push towers with their high attacking stats. But we need Janna for her utility. Her Q and passive can be great for escaping a minor engage or gank. Her ultimate can can completly stop a larger engage, especielly from champions like Garen or Volibear who telegraphs their engages a lot as they are basicly just running at the enemy team. Even champions like Malphite or Xin Zhao can be stoped by this as they are knocked away, both instances buy her team the time they need to create engough distance to the point where the enemy team can't engage anymore. Altough sivir could help us escape an engage with her ultimate, it is not as reliable as Sivirs simply helps to run faster and if some1 gets caught they'll kinda be screwed.