kryptonite
Kryptonite doesn't heart Superman, it makes him weak. The reason it makes him weak is because it emits a radiation that is harmful to people who were born on the planet Krypton.
Superman is weak against kryptonite.
Superman is made weak by Kryptonite, radioactive pieces of his destroyed home world. It's not a noble gas.
cryptonite
He's Superman.
When there is a good villain in store for Superman.
Superman win ,war could not stand chance against him,if superman is capable of takin 1000000tone of building and he recharge his power from the sun comon just superman is weak against the jewel in green
KRYPTONITE DUMMY and spell agenst right stupid
He has to stay away from it and destroy even if he is weak when he is near it
His powers get cut in half - he still has powers, but they're weak.
superman
Oxygen