Venomancer is a ranged agility hero that is typically played as a support/utility hero.
One of the strongest lane supports in the game, he dishes out considerable harassment, contributes enormous amounts of AoE damage over time to teamfights, and is a strong pusher/anti-pusher.
Skills
For ‘Lane Kill’ Build – Max Venomous Gale first, then Poison Sting, then Plague Wards.
Typically get your ultimate, Poison Nova, at level 6 and try to retain enough reserve mana to use it in early teamfights.
For Standard ‘Push/Anti-Push’ Build – first point in Venomous Gale for the slow, then focus on maxing Poison Sting followed by Plague Wards. Max Gale last.
Again, situationally get your ultimate, Poison Nova, at level 6 and try to retain enough reserve mana to use it in early teamfights.
Items
Starting Items: Courier and/or Observer Wards, Tangos, Healing Salve, 1x Iron Branch, Ring of Protection.
Early Game: Flying Courier, Observer Wards, Boots of Speed, Magic Wand, Ring of Basilius.
Core Items: Observer Wards, Arcane Boots, Mekanism.
Luxury Extensions: Aghanim’s Scepter, Force Staff, Drums of Endurance, Ring of Aquila (or Vladmir’s Offering), Eul’s, Orchid, Necronomicon, Heaven’s Halberd, Pipe of Insight, Ghost Scepter.