#5 Deathstroke’s only clear weakness is his ego.

Earlier, I mentioned how Deathstroke nearly managed to defeat the Justice League on his own. The only reason he didn’t is because of his ego and thirst for power. He managed to defeat each member quite quickly, but they overtook him when Wilson tried to take Green Lantern’s ring for himself.
For that reason, Wilson is often seen as a super villain with a lot of hubris, balanced with a specific mercenary code that guides him. This makes him one of the most unpredictable, yet interesting, antagonists in the DC universe. And the only hope Batman has when facing against him is a way to exploit the villain’s pride.