Walking Wasteland/Playing With

Basic Trope: In a radius around the character, people and things tend to wither and die.
 * Straight: All humans, animals, and plants fall immediately ill if they get within twenty meters of Bob and die in a minute if they stay in the area.
 * Exaggerated: Everything crumbles to dust in a few seconds as long as it is on the same continent as Bob.
 * Downplayed: Bob's potted plants keep dying, no matter what.
 * Justified:
 * Bob has been cursed by a god.
 * Bob dabbled in Black Magic with little idea of what he was doing.
 * Inverted: Bob's mere presence within twenty meters is enough to heal all wounds and diseases and even resurrect the dead.
 * Subverted: It looked like Bob, a new character, had a death aura, but actually the villain had flooded the area with invisible nerve gas.
 * Double Subverted: The villain's nerve gas canister dated to World War II. The gas inside had degraded to ineffectiveness long ago. The deaths really were because of Bob's presence.
 * Parodied: Bob's presence turns people into musicians who play death metal in corpse paint.
 * Zig Zagged: Bob's power is instantly deadly, but then a villain appears who resists it, but that was because of an amulet that gets removed, after which a priestess with divine protection withstands Bob's aura, but she offends her god and loses the protection, but there are others in the god's good graces...
 * Averted: Bob does not have a death aura.
 * Enforced: "I heard young people nowadays like dark and gothy things. A character with a death aura would fit the bill."
 * Lampshaded: "How does he do that? I thought this universe was strictly science fiction."
 * Invoked: ???
 * Exploited: "Let's lure Bob there so that he destroys that annoying guy's prize-winning roses."
 * Defied: "Get someone else take part in your life force manipulation experiment, because I won't do it."
 * Discussed: "Of course Bob doesn't have a death aura, despite what the rumors say. That kind of thing happens only in particularly unrealistic fiction."
 * Conversed: ???
 * Deconstructed: Bob commits suicide because of his perpetual loneliness.
 * Reconstructed: Bob feels oppressed by his perpetual loneliness, so he becomes a Death Seeker and fights supervillains without fear.