Which heroes can jungle, even in special circumstances?

Solution 1:

Unconvention jungling been done in various ways with:

• Luna, who can jungle with early glaives and abusing aggro resets - YouTube Guide
• Medusa, who can kill Radiant ancients with split shot - YouTube Guide
• Tinker, who can kill ancients with March - YouTube Guide
• Invoker, who can kill Radiant ancients (and Sunstrike!) with an Exort build - YouTube Guide

The problem with all of these heroes is that it's very easy to shut them down and steal their farm, and it's very conspicuous as none of the heroes are viable roamers or gankers early in the game. Jungling usually means doing so from level 1 and keeping pace somewhere between a dual laner and a solo in terms of experience.

To be complete, the following heroes can jungle (traditionally) reasonably well:

• Axe
• Batrider
• Chen
• Doom
• Dark Seer
• Enchantress
• Enigma
• Legion Commander
• Lifestealer
• Lone Druid
• Lycanthrope
• Nature's Prophet
• Ursa

The following heroes can jungle if it's absolutely needed but they're slow at doing so and thus probably shouldn't:

• Bloodseeker
• Crystal Maiden
• Huskar
• Phantom Lancer
• Sand King
• Shadow Demon
• Wraith King
• Troll Warlord

Solution 2:

I think there are many heroes that can jungling at the start of the game.

1. Ursa
   Ursa is the best jungler. He can solo roshan at early game, he can kill ancient creep at lv.1.

2. Lifestealer
   He has lifesteal at level 1. He can jungling vere well. He can kill ancient creep at lv.1 too.

3. Enigma
   He can change enemy creep into eilodron under his control. He can double his eilodrons in 6 attacks. He is best jungler.

4. Chen
   Best support and jungler. He has 4 Helm of Dominator. He can dominate ancient creep too. I promise he cant be killed by neutral creep at lv 1 when Chen is jungling.

5. Nature Prophets
   He has an abillity that can change trees into treants. He is God of Jungle. He can get many gold in a minute.

6. Alchemist
   He is the fastest farmer hero ever. He can get Radiance in 15 minute only. He can solo ancient creep with his skill 1.