Hey unlock the gates,

The items in your build are fine, but the last one - Knight's Vow - I don't approve. Becase ivern need to deal some damage as well. He is not full support. Instead of that item, I think it would be better to buy Rylai's Crystal Scepter or something else that gives ability power and hp.
In mobafire there is no point in making a build without any explanations in the chapters. If you want us to watch your videos you could at least embed it
For example: the result is: Play Video
Hope you will consider improving your build, delete or archive it.

-monimakaroni