Balancing Caustic

@GreenxxFire There's several ways to buff a lot of legends without breaking them, doesn't mean it needs to happen. If you choose to play caustic you're choosing to play a specific play style, there are things caustic does which no other legend can, and things other legends do which caustic can't. Caustic can revive both his teammates right around the corner from the enemy squad and the enemy can do nothing but sit there while you all heal up to full again in the gas. Where as out in the open he is not so strong. He is strong in some areas, weaker in others, perfectly balanced.