What was Zedd's obsession with Tommy?
 

In season 2, Zedd seemed obssessed with draining Tommy's powers. And even made plans to capture Tommy and brainwash him to be his heir. Why?

Re: What was Zedd's obsession with Tommy?
 

Zedd knew Tommy was powerful and if he could wanted him on his side.

Re: What was Zedd's obsession with Tommy?
 

Tommy was the most powerful Ranger so Zedd wanted to make sure his powers were gone forever

Re: What was Zedd's obsession with Tommy?
 

Zedd saw it as an opertunity to stick it to Zordon.

Re: What was Zedd's obsession with Tommy?
 

Getting Rid of Tommy would have left the Rangers vunerable to Zedd's invasion.

Re: What was Zedd's obsession with Tommy?
 

basically because he knew the Green Ranger powers were a weakness so he kept on trying to exploit them because he knew that as soon as his powers were fully exhausted the Rangers were at a disadvantage since they were down a zord.

Now as to your other point I don't remember Zedd ever caring enough about Tommy to make him a heir.

Re: What was Zedd's obsession with Tommy?
 

Actually, he is right. "In White Light part 1" Zordon mentions something about Tommy becoming his air. And soon after Tommy is teleported away in paid. It was a strange comment. But it seems like it was to create suspense and throw off Tommy as a White Ranger candidate. Since viewers would think he was captured by Zedd, when he was actually teleported away by Zordon.

Re: What was Zedd's obsession with Tommy?
 

Zedd also seemed to view the Green Ranger as one of Rita's biggest failures. Since she lost the powers to the Rangers. He wanted Tommy's powers to be gone to signify Rita's era was over.

Re: What was Zedd's obsession with Tommy?
 

Getting rid of Tommy brought the Ranger's power level down. It was smart strategy to get rid of Tommy first. Plus the Green Ranger powers seemed to come in handy.

Re: What was Zedd's obsession with Tommy?
 

That was a wierd scene. Zedd never mentioned this again.