Strong Tri-lanes

This is a list compiled from various sites on the net, discussing aggressive and defensive tri-lane combos that are strong.  Most of this can be considered "food for thought", and requires coordination between teammates to pull off the suggested combinations.  Note that all tri-lanes, even if they seem dangerous in theory, can be countered by various lineups or simply outplayed.

How to make a tri-lane:

The simple version:

High-Dmg-Carry + Tough Support w/Stun + Followup Stun/Slow

OR

Semi-Carry w/Nuke + Semi-Carry w/Stun + Ranged Support w/Followup Stun/Slow/Heal

The complex version:

Aggro Tri-Lane: 

• Heroes that are dangerous at level 1 (usually nukers / disablers)
• Heroes that can fight repeatedly (i.e. have mana for more than one cast)
• Aggressive laning heroes (long attack range, high armor, spammable nukes, etc)
• Supports that aren't dependent on farm
• A (semi) carry who can catch up on farm if the aggro tri-lane fails, usually by jungling or flash farming

... side mention:  heroes that can destroy the enemy Tier 1 tower very early are also beneficial (Leshrac, Pugna, Ursa).

Defensive Tri-Lane:

• Hard carry (position 1), who needs babysitting to get safe, reliable farm
• Examples:  Morphling, Terrorblade, Phantom Assassin, Spectre
• One greedy support (position 4), who will stack, pull and farm jungle
• Greedy:  Sand King, Leshrac, Shadow Shaman
• Jungler Supports: Enigma, Chen, Enchantress
• Semi-carry "supports":  Wraith King, Sven, Gyrocopter, Naga, Kunkka
• One hard support (position 5), who will harass offlaner, ward, keep carry safe
• Examples:  Crystal Maiden, Lion, Bane

Helpful Article:  This article on supporting explains how to choose supports for tri-lanes, and how your choice of supports impacts how your supports will play.

Examples (farmer + position 4 + position 5):

Alchemist + Sandking + Vengeful Spirit
Alch/Lifestealer/Sven/WK/Tiny + Naga + Bane
AntiMage + Sven/WK + Disruptor
Axe + Abaddon + Disruptor (Cage match w/shielded axe!)
Axe + Earthshaker + Keeper (Block with Fissure, Taunt, and eat Illuminate!)
Axe + Phoenix + Dark Seer (aggro tri:  Creep skip and laugh when they come attack)
Axe + Silencer + Jakiro
Bounty Hunter + WindRanger + Bane
Bounty Hunter / Clinkz + Omni + Venge (bring sentries and deward!)
Chaos Knight + Venge + Ancient Apparition (Magic Dmg Amp + Stuns into Cold Feet + Wave of Terror right-clicking)
Dragon Knight + Venge + Lina
Gyro + Magnus + Bane (Banish into Skewer into Barrage)
Jugg + Nyx + Veno (Impale into Gale into Spin)
Kunkka + Centaur + Disruptor (X/Glimpse into Kinetic + Stomp/Torrent/DbleEdge)
Kunkka + Tide + Jakiro (Gush + Ice Path + Torrent, etc)
LegionC + Abaddon + Disruptor (Kinetic field cage match with healing support)
Lifestealer + Earthshaker + Leshrac/Lina
Luna + Ogre + Crystal Maiden (CM)
Morphling + Nyx + Skywrath
Ogre + SD/CM + AA
Outworld Devourer/Destroyer + Bane + Shadow Demon
Pugna + Ogre + Skywrath (Dmg Amp into Nukes)
SFiend + Tide + Venge
Slardar + SK + Dazzle
Slardar + WraithKing + Disruptor (Hellfire into Crush into Kinetic Field Cage Match)
Sven + Tide + Lion/Venge
Timbersaw + Omni + Phoenix
Tusk + Centaur + Leshrac
Undying + Venomancer + Disruptor (“Cage match w/Tombstone!”)

Jugg, Venge, Veno (Missile, Slow+Wave, Spin)

PL, Keeper, Chen (harass, then tower push).

Visage, Rubick, Naga/Jugg/Lifestealer

CM, ES, hard carry needing mana (Alch, CK, Sven, SK, Luna, etc)

Tide, Veno, hard carry w/teamfight (AM, OD, Sven, etc)

Veno, Leshrac, Naga (push tower)

Early-Damage Tri-lanes:

Luna/Razor/Lifestealer/Gyro + Mirana + Bane/CrystalMaiden/ShadowDemon

Defensive Tri-lane Heroes:

Hard Carry: Faceless Void, Lifestealer, Spectre, Alchemist, Morphling, Lycan, Terrorblade, Phantom Assassin, etc.

Supports for Defensive Tri-lanes: Bane, AA, Crystal Maiden, Lina/Lion, Naga, Rubick, SD, SS, Tide, Wisp, Treant, Earthshaker, Jakiro, Nyx, Sand King, Windrunner (WR), Witch Doctor (WD)

Aggressive Tri-Lane Heroes:

List:  Chaos Knight, Mirana, Shadow Shaman (SS), Keeper (KotL), Jakiro, Naga, Veno, Shadow Demon (SD), Tiny, Slardar, Razor, Lifestealer (Naix), Treant, Juggernaut, Undying

• Slardar, Shadow Shaman, Lion
• Chaos Knight (CK) + Lion + Jakiro/Veno/Undying
• Lyncan + Veno + Chen
• Tiny + SD + SS
• Naga + Treant + Bane
• CK + Beastmaster + Venge
• Razor (Link) + Bane (Enfeeble) + CM (mana + frostbite w/Link)
• Silencer + Bane + KotL (Last Word + Brain Sap, with unlimited mana)
• Silencer + KotL + Nyx (mana headache)
• Pugna + Lina + Nyx/Ogre (Nukers with push)
• Sven + Leshrac/Lina + Naga/Visage

Heroes with High Early Damage in Tri-lanes (unusual combos)

• Clockwerk + Phoenix + Warlock
• Razor + Timbersaw + Skywrath Mage
• Naga + Tide + Shadow Shaman
• Morphling + Lina + Crystal Maiden

Strong Tri-Lanes:

• Gryocopter/Kunkka + Shadow Demon + Lesh/Lina
• Gyro + Crystal Maiden + Leshrac/Lina/Ancient Apparition/Mirana (Frostbite into Missile+Stun)
• Sven/SK/Alch + Skywrath + Lina (heavy nuke lane)
• PA + Shadow Demon + Crystal Maiden (CM)
• Gyro + Earthshaker + Leshrac (Fissure to block, Split Earth/Homing Missile, Edict + Rocket Barrage)
• Slardar + Venge + Crystal Maiden
• Juggernaut + Rubick + CM/Veno
• Dragon Knight + Undying + Leshrac
• Dragon Knight/Alchemist/Doom/Tiny/Morph/Naga + Chen + Veno/Enigma (lots of push)
• Jugg + Jakiro + AA (vortex + icepath + spin)
• Jugg + CM + AA
• Carry w/stun (SK/Sven/Alch/Slardar/OD/DK/CK) + CM + Skywrath
• CK/DK + Lich + KotL (endless harass)
• CK + Disruptor + Dazzle/Leshrac (“get back here!”)
• Faceless Void + Venge + Leshrac

Trilane Ideas:

• Jugg, Venge, Veno (Missile, Slow+Wave, Spin)
• CK, Jugg, Skywrath/Pugna (Rift, Seal/Decrep, Spin)
• Phantom Lancer, Keeper, Chen (harass, then tower push). 
• Naga/Jugg/Lifestealer, Visage, Rubick
• CM, ES, + hard carry needing mana (Alch, CK, Sven, SK, Luna, etc)
• Tide, Veno, hard carry w/teamfight (AM, OD, Sven, etc) 
• Naga/Pugna (push), Veno, Leshrac
• Gyro/Kunkka + Shadow Demon + Lesh/Lina
• Gyro + Crystal Maiden + Leshrac/Lina/AA/Mirana (Frostbite into Missile/Stun)
• Sven/WraithKing/Alch + Skywrath + Lina (heavy nuke lane)
• Phantom Assassin (PA) + Shadow Demon (SD) + Crystal Maiden (CM)
• Gyro + Earthshaker + Leshrac (Fissure block, Split Earth/Missile, Edict + Rocket Barrage)
• Slardar + Venge + Crystal Maiden/Disruptor
• Juggernaut + Rubick + CM/Veno
• Dragon Knight + Undying + Leshrac
• Dragon Knight/Alchemist/Doom/Tiny/Morph/Naga + Chen + Veno/Enigma (lots of push)
• Jugg + Jakiro + AA (vortex + icepath + spin)
• Jugg + CM + AA
• Carry w/stun (WK/Sven/Alch/Slardar/OD/DK/CK) + CM + Skywrath
• CK/DK + Lich + KotL (endless harass)
• CK + Disruptor + Dazzle/Leshrac (“get back here!”)

More Aggro Tri-lane Combos:

CK + AA + Lina/Leshrac (Rift into Chaos Bolt, Vortex, Split Earth/LSA)

CK + CM + AA (Rift into Freeze, Vortex; Chaos bolt to finish or just to stun partner)

Alch/Lifestealer/Slardar/SK/Sven + ShadowDemon/Skywrath/Pugna + Lina/Lesh/Lion/SS
Centaur + Ogre Magi + Skywrath Mage (heavy nuke, stuns, slows)

Generic Tri-lanes:

CM + AA + Drow/Clinkz/Huskar/OD/SFiend/Jugg

SD + Skywrath (Disruption + Amp + Bolt+Shot) + Sven/CK/DK/Morph/Jugg

SD + SS + Antimage/Naga

Dangerous Aggro Tri-Lanes

Note:  Someone needs tangos / QBlade to pull the lane back with a Neutrals pull (radiant side), or else tower-killing power

Unkillable trio:  Centaur + Abaddon/Omni + Dazzle

• Slardar + Venge + Omni (Missile into Crush into Purify)
• Centaur + Shadow Shaman + Dazzle
• Centaur + Pugna + Veno – (Veno initiates w/Gale, Centaur Stomp + Nether Vortex, Decrepify + Double Edge (Necrolyte solo safelane, and DK mid)
• Centaur + Shadow Demon + Leshrac (Banish into Stomp -> Dmg Amp + Split Earth + Double Edge)
• Tiny + KotL + Shadow Shaman (Shackle into Avalanche + Illuminate)
• Drow + AA + Lion (long attack ranges for easy harass, Stun + Sheep + Slow + Cold Feet)
• Lesh + Veno + Keeper (push, kill tower, repeat with Tier 2 tower).  Supplement with ganker & semi-carry (maybe Clinkz safelane, Beastmaster mid?)
• CK + Sand King + Dazzle
• Mirana + SS + Lion
• Mirana + Bane + SS/Lion
• Tiny + Keeper + SandKing (Toss into Burrowstrike into Avalanche)
• Centaur/Slardar + Leshrac + Dazzle (Poison slow into Split Earth into Stomp/Crush)
• Pugna + Centaur + SD (Disruption+SoulCatch into Stomp+Blast into Decrep+DoubleSlice)

Defensive Tri-lane Heroes:

Hard Carry: 
Brewmaster, Faceless, Lifestealer, Spectre, Alchemist, Morphling, Lycan


Supports for Defensive Tri-lanes: 
Bane, AA, Crystal Maiden, Lina/Lion, Naga, Rubick, SD, SS, Tide, Wisp, Treant, Earthshaker, Jakiro, Nyx, Sand King, Windrunner (WR), Witch Doctor (WD)

Aggressive Tri-Lane Heroes:

Chaos Knight, Disruptor, Shadow Shaman (SS), Keeper (KotL), Jakiro, Naga, Veno, Shadow Demon (SD), Tiny, Slardar, Razor, Lyncan, Lifestealer (Naix), Treant, Juggernaut, Undying

Aggressive Tri-lane Samples:

• CK + SS + Jakiro/Veno/Undying
• Lyncan + Veno + Disruptor
• Tiny + SS + SD
• Naga + Treant + Bane
• CK + SK + Venge
• Razor (Link) + Bane (Enfeeble) + CM (mana + frostbite w/Link)
• Silencer + Bane + KotL (Last Word + Nightmare, with unlimited mana)
• Silencer + KotL + Nyx (mana headache)
• Pugna + Lina + Nyx/Ogre 
• Ogre Magi, Lion/Lina, Venomancer
• Undying + Skywrath + KotL
• Undying + Bane + Silencer (you don't have hp OR mana!) + Medusa mid + Invoker safe?
• Undying + Visage + Silencer
• Undying + Visage + Phoenix
• Undying (Soul Rip) + Leshrac (Lightning) + Jakiro (Liquid Fire) = no hp for enemies