Troll Warlord

Use Whirling Axes to secure ranged creep lasthits and harass the opponents at the same time.

Avoid switching targets in engagements as you'll lose Fervor stacks.

Avoid popping Battle Trance too early in fights as you might get kited. Use it later, on disabled unit or defensively.

Troll can take Roshan early on even by himself. Use Battle Trance if necessary to heal up.

Consider purchasing anti-kiting items so you can stick to the target and not waste Battle Trance.

Consider aghanims shard around 20-30 minute mark to make your team stronger.

Troll Warlord is a strong laner. Buy extra healing items and take good trades.

Avoid Troll when Battle Trance is on. Don't allow him to heal by hitting you.

Battle Trance applies basic dispel on Troll. Use dispellable spells and items afterwards.

Item's like euls and ghost scepter are really good at kiting Troll Warlord and battle trance.

Troll Warlord takes down buildings fast with Fervor. Organize defense quickly.

Items that pierce evasion are good against Troll's Whirling Axes (relevant for Melee heroes).

Troll Warlord is able to take Roshan early on. Ward and check Roshan.

Aghanim's Scepter makes Troll's Whirling Axes apply basic dispel on him and opponents.