Visage is a ranged intelligence support who particularly excels in trilanes and large teamfights, where his nuke becomes incredibly potent. He is also an unusually tanky support thanks to his passive and has access to strong summons when he hits level 6.
Skills
Grave Chill is skilled and maxed second
Soul Assumption is usually skilled first and always maxed first.
Gravekeeper's Cloak is usually skilled and maxed last.
Summon Familiars is always skilled (levels 6, 11 and 16).
Items
Starting Items: Courier and/or Observer Wards, Tangos, Healing Salve, 3x Iron Branches, Clarity.
Early Game: Flying Courier, Observer Wards, Boots of Speed, Magic Wand, Medallion of Courage.
Core Items: Arcane Boots, Mekanism.
Luxury Items: Aghanim's Scepter, Assault Cuirass, Rod of Atos, Drums of Endurance, Scythe of Vyse, Shiva's Guard, Heaven's Halberd, Force Staff.
Situational Items: Dust of Appearance, Sentry Wards, Gem of True Sight, Smoke of Deceit, Boots of Travel, Vladmir's Offering, Pipe of Insight, Ghost Scepter, Necronomicon.