Some of my favorite combos

I really like going with these combos whenever I can!

- Pudge + Dark Seer is deadly when Dark Seer puts Ion Shell on pudge while he uses Rot to kill his enemies. Although Pudge may not always get the kills he still gets lots of gold, because of the assists and his victoms lose gold from deaths too.

- I have always wanted to try Dark Seer + Magnus because the skill Vacuum + Magnus his ulti and the rest of his skills go great together. Enspecially if Magnus gets fed. If he does it is as good as GG.

- Tiny + Ursa is one of my favorite combos. With it you can get ganks at level 2 easy. All you have to do is have Tiny Toss Ursa at the enemy + Overpower + Fury Swipes = GG.

- Clockwerk + Clinkz is pretty deadly too. Clinkz is a serious DPS hero and he is ranged. His Searing Arrows and Strafe + Clockwerks Power Cogs is a quick and easy way to end a game.

- Jakiro + Batrider is op. Batrider uses Firefly + Jakiro uses all of his power. They make a good team to solo defend the base while the others back door the enemy. GG.

- I know more combos but im getting tired of typing so here is one more good one. Sand King + Earthshaker Sand Kings Burrowstrike and Epicenter + all of Earthshakers skills is a good way to kill the entire enemy team.

Shadow Shaman + Juggernaut. Shackles then Jugger goes spinnin = dead.

Ancient Apparition ult + Zeus ult = Dead team

I haven't tried this, but how does Earthshaker + Dark Seer sound? DS could vacuum everyone in to get max Echo Slam damage.

a good combo i've seen was Shadow Shaman + Dark Seer in team fights. vacuum and ward trap. There also the kotl and any hero with a spammable or high damage nuke (pl, beast master,...)

Tiny wisp lets you gank anywhere wit extreme power

Chen and Outworld Destroyer (I know they changed it but out of his three names that one was my favorite) lets you always save an teammate other than Chen himself.

Shadow-Demon Kunkka, you trap the enemy than torrent/boat them.

I've seen the dark seer es combo...its pretty sick...va*** plus fissure guarantees a stun on the whole team..this can be followed up with wall and blink in echo slam...its pretty much a guaranteed team kill...

another fun combo with ds is dark seer and anyone with stealth....ion shell the stealth hero and LOL as they run near the confused enemies.

But if you want a truely dominating lane combo that has been a dota classic for god knows how long...u need look no further than sand king lina....incredibly dominant lane double stun plus strong nukes, if the sand king gets caustic at u can easily get a kill at level 2 by poisoning the creeps and then nuking them down with ur combo...assuming u stunned the heros on top of that.

An oldie but a goodie... Phantom Lancer and Keeper of the Light.

Forever a Lancer.

Bane and Lina - absolute carnage, especially once you both hit 6. Sure...you can't auto-attack people under Nightmare, but you can still safely cast on them...

At level 2 their combo has 360 damage

At level 4 it has 580 damage

At level 6 it has 1660 potentially (3 levels in Dragon Slave, 2 in Light Strike Array, 3 in Brain Sap and 2 in Nightmare, plus their ults). Plus a total of 11.6 seconds of stun/disable that you can split over both lane opponents...

Obviously you have to account for magic resistance, but when you consider that you also have 3 stuns/disables included in that, the opposition better be seriously tanky...

Crystal Maiden and Enigma - Their two ultimates, Freezing Field and Black Hole have amazing synergy and when both is maxed level can wipe a team if they aren't careful. Even better with a Dark Seer to help land the attacks.