Shouldn't you really build Guinsoo's Rageblade on Skarner?

I have been playing Skarner for a long time and he is one of my favourite champions. I have tried many builds on Skarner but today I will present you my most successful one; The Guinsoo's Rageblade Skarner build.

Also link to short Youtube guide: https://www.youtube.com/watch?v=3vn-b44070c

We all know that Skarner is not one of the most powerful champions right now, but if you pick right items you can be pretty decend if not OP.

What makes this build so powerful is the synergy of items & Skarner's toolkit as you are able to provide good CC and tons of AOE damage if you play correctly.

The build goes:

1.Stalker's blade - Cinderhulk 2.Mercury's Treads 3.Iceborn Gauntlet 4.Titanic Hydra 5.Guinsoo's Rageblade

6.OPTIONAL: - Sterak's Gage -The Black Cleaver , The Obsidian Cleaver -Randuin's Omen -Dead Man's Plate -Adaptive Helm
-Spirit Visage

-ELIXIR: Elixir of Iron

The build is late-game oriented.

Be shure to check Youtube video on link that I provided for more details and explanation.

Please comment your thoughts, I would also appreciate if you actually try this build before leaving positive/negative feedback.