Weaver is a very powerful early, mid and late game hero because of his ability to output lots of damage and to escape.You can take this build to any lane, i usually take him to a solo lane to get more levels and mess up my opponent with Geminate and Shukuchi.
MAKE SURE THAT YOU DO NOT BUT LINKENS SPHERE IF THE ENEMY TEAM HAS VERY FEW SINGLE TARGET SPELLS!
Have Fun :D