Jhin as a Supp

Hey dudes,yesterday i played a very weird pick ,Jhin supp..Yeah i know that jhin is adc and bla bla bla ,,but i play a lot of Jhin so i can play in every lane now Weird,I know.Start with Relic Shieldand 3 pots..Next my mission is to build Frozen mallet first item and boots.After i go for **Trinity **and boots of Swiftness .Why Froz mallet? cause i need to slow the adc have life and little damage. Why Trinity? cause i need cd health and atc speed for my passive. Next i build Frozen Heart and finaly Lord Dominiks Why Frozen heart? cause i need Armor(enemy had a lot of damage and only Damage not Ap) and its passive so noone can follow me to kill me. And Lord Domoniks cause i need to brake their armor .. After that if the game didint and i will sell Relic and build Duskblade. Well if u see i was 18/6/23 and when we start we had the adc afk for some minutes so i take the first blood alone,that was positive for me. Look my link ..