I'll see your green lantern and raise you one schoolbus!
Yellow beats green, jerk!
Oh, how very outdated you are.
The Oans worked out the flaw in the power battery, removing the weakness to yellow(yes, I'm a comic book geek).
Since Green Lantern is the last superhero mentioned(can we please stick to superheroes? I like Lord of the Rings, but that's not what the title says), I'll go with Professor X. He get's in GL's mind and blocks his ability to control the power ring.