He can gank from level one, push, and solo Roshan with good micro, making him a support who needs no items to impact.

Convert the strongest creeps in the jungle and use them to gank lanes, a good dominated creep turns a gank into a tower.

Your dominated creeps take many tower hits to die, so send them to push lanes and take uncontested structures.

Hand of God heals the whole team globally, so time it to counter AOE damage bursts in fights and pushes.

Mark a target with Penitence and focus that hero, the amplified damage turns the fight around a single kill.

He buys all the support items, so your other supports stay more farmed while you run Mek and auras.