So Chris asked me to think and do some research about some heros that would complement each other well.

So here is what I am thinking:
Ursa and Jakiro- Safe Lane
Venomancer and Nyx Assassin- Hard Lane
Outworld Devourer- Mid

Now here is my logic to this decision:

Ursa is a great hero to play as just because he is tanky, hits hard and hits fast. He has 1 flaw though, he is slow as hell. Thats why I put him with Jakiro because as long as ursa can get to his opponent they he can slow them and almost always kill them. Once Ursa gets Vlads then he can go to the jungle for aprox. 3-5 minutes. Then he should kill Roshe and start ganking. The next item you should try to get is shadowblade just so that we can counter that "not getting close enough problem" that he has.

Outworld Devourer would make a great mid becuase he can just keep harrassing with his "w" so that the hero he is going against will no have any mana and less farm. This is very crutial part of the plan though, Outworld"s main purpose is to harrass and keep his opponent in lane and underfed so he won't be going around ganking. Once we enter the ganking phase make sure you do not leave to gank until your opponent leaves to gank becuase we do not want him to get back that farm he just lost.

The duo at hard lane was a bit tricky to pair with. I needed some pushing/defending power and thats where Ven comes in. I also needed an assassin and and someone who could hit hard. Together they make a great harrassment combo. Ven's got his little wards and a nice poison ulti, while Nyx has mana burn, a stun, and great hard hitting ulti that turns him invis. Once ganking phase enters it is all Ursa and Nyx. Everyone else just stay at lane and try to push and/ or ask for ganks by Ursa and Nyx if you need it.

The supports are Ven and Jakiro. Remember courier and wards. MOST IMPORANT LET THE JUNGLER USE THE COURIER. This is very crucial and listen, via teamspeak, when Ursa gets his Vlads. This is when Ven or Jakiro buy the upgraded courier.
The Carries are Ursa and Outworld. Ursa will get money via jungling and killing. Outworld will get his farm almost entirely from farming in lane and kills in late game, unless his opponnent at mid leaves to gank. Nyx is just about entirely ganking, always carry 2-3 tp scrolls becuase you are everyones bitch. If someone needs you to fix a harrasment problem that is where you are.

Please tell me what you think and what the weaknesses are so that I can better improve this combo in the future.

Nyx can be replacable with others if prefered. The Hero slot that he is filling up revolves around ganking, being agility (for balance reasons), and as a bonus being invis( invis is useful to our team because it means he has that advantage for a bit, then the oposing team buys a true sight putting them back some money). Tell me some suggestions that can fit this role if you guys do not want nyx.