This is the only real piece of Qiyana's kit people havent yet understood. Msot qiyana players i see hold their r for far too long, and only use it on terrain. This is definitly a good time to use it, say, in a baron pit fight, but the initial knockback is a core part of the r. Many people dont realize that if you r an enemy into terrain, their collison will trigger the explosion, allowing for more long range use of the ability. One final thing to mention is that the explosion on terrain isnt always worth it, as its a short cooldown and the ability to knock away multiple enemies a fixed distance is an ez way to save yourself from ganks as well as deny kill on teammates. This is what makes qiyana support actually viable, as the knockback is extremely useful. I may do a fresh guide later on support qiyana, so let me know in the comments if that is soemthign you want to see.

Qiyana's W passive is actually very strong in the laning phase, and due to the unlimited timer on holding said element, it can be a viable strat to just hold onto an element for extended periods of time and focus on farming up. However duurign teamfights it is definitely not reccomended to hold onto an element at all, and focus on doing maximum potential damage. Make sure you always have one element active before a teamfight, as that will allow you to get a charged q off, then you can w and fire off another. Wasting the guranteed reset means you are losing a lot of burst that you will be missing when 5 enemy players decide to use all there cc to nuke you out of the fight.

Qiyana, despite being a mid champion, has an insane gank if she is able to land her river charged q. This means you can play qiyana as almost a second jungler in terms of gank pressure. With the boots of mobility, you can quickly roam up to top or bot lane and if you land the q,it can easily lead to a kill. Post 6, her ganks become even stronger as she if she can get behind her rooted enemy, the knockback from her R will almost always gurantee a kill if she is able to knock the enemy into your adc and sup. However be warned there is currently a bug that sometimes if you r a rooted enemy, they will not move and even free them from the root early. But if you wait till the root is over, no issues.

I plan on further developing this guide in the future, let me know either in the comments or at my twitter, @theCanadianFez, and i will happily answer any questions and if you have a suggestion for a section let me know too. :) see you on the rift and dont tax my lane -_-