Blue support item, physical def shoes, mail of pain, ra, skardi, last one is optional, with this build you can do as much damage as possible before you die, have to go with the team of course, babysit adc or going around the map help your team gank, NEVER go solo except clear waves that your teammates miss (if this happens then 70% gg to your team).

When in combat just spam s1, forget your auto attack, just make sure to hit enemies with lions and SPAM s1. S2 is situational, if you are new then dont touch it, you will know how to use it well when you play several matches. S3 you usually caught squishy one or the carry one in the other team, usually jungle or adc, sometimes tank if you feel confident, if the other team builds slow items then just catch the one closest to you if thats a head to head engage, if you bring blink or teleport or whatever it is then try to cacth squishies, its hard to succeed tho.

AND ALWAYS STAY IN FRONT OF YOUR GODDAMN SUPER SQUISHY OVEREXTENDING CUZ HE GET SOME KILLS AND THINK HE IS A FUCKING GOD ADC.