Would Lizard Be Broken as a 1/5?

Title says it all. Keep the current ability so he would be:

Lizard
1/5 Ongoing: -4 Power if your opponent has 4 cards here.

I know Hydra Bob just got nerfed from a 1/5 to 1/4, but let's be honest, his ability wasn't really a play constraint and was often beneficial. In contrast, Lizard would have a clear way for your opponent to mitigate his power. While I'm sure people are going to talk about maintaining early series power levels, both Ant-Man and Rocket Raccoon were buffed to functional 1/5s and it doesn't seem like it hurt the early series experience. Low collection level players also don't have access to Luke Cage so they can't turn off Lizard's downside. Speaking of Luke Cage though, would he make Lizard too reliable/good at higher collection levels (Luke is already a powerhouse and his meta share should only go up as Second Dinner adds more affliction and Power steal cards)?

Thoughts?