Blizzard's method of balancing is just completely nuts.
"This is too strong. It needs to be lower."
*power or ability gets nerfed by 100%*
"Oh, people are complaining about it. I guess we need to adjust it back up a little."
*adjust it back up by 50%*
It's like they don't even understand the concept of taking small steps to adjust something. It's no wonder they keep patching and "balancing" shit for a dozen years, because that's how long it takes with their methods...
Creston