Try to damage opponents with R+Q combo. Remeber that basic attacks recuces cooldown of R by 2 sec witch each hit. Use Shield often to outmanuveur otchers and hit them, that why u need mana regen so much. W is for immobilizing enemies and making oportunities to give kills to your companions. REMEMBER: Alt+E will grant u shield on yourself - get used to it because its most basic action with this build. Speeding and hiting is all u need.

When towers start to fall its time to get some AP for your Q(attack) and E(shield). Its sign for u to prepare to crush enemies witch power of R+Q combo :D

Keep in mind the great potent of using Talisman of Ascension. This speed bring me or my comrades to safety or grant some kills. This is Even Greater with R+E combo. Thats just racing team for 1,5 seconds :D

Good Luck!