x3 This will be enough to start. U have to remember when u last hit a minions u will restore HP and a little of mana.

When u get feed try to buy:
to get (will gives u HP, mana) and if u can
With this 3 items u will be unstopable, remember Rylais Gives u HP, Ap Dmg and Slow enemies very usefull for you, your Q (to slow him again) and in the team fights.

Your next meta can be
and
or
and something to get MR like
It's will depends wich enemy is more stronger in that moment, but i never get a complete build couse always win early with my first 3 items.

Other thing u have to keep in mind, u have to use ur Q only when you have the chance to hit the enemy, in that case you can slow enemy, use your W to silence him and then hit them with the E or Ulti to kill him.
Q->W->E + R or Q -> W + Ignite -> R, ignite reduce Hp very fast in enemy while u are hitting them or if they are low u can just only use Ulti and thats All for the enemy!


Hope u like this guide, is my first one and i wanned to share with u.

Ended Build:
+

Or