Venom

An ability that is similar to deathtouch in many older cards is Venom (or Basilisk), named after the card Venom.

Description
The latest rule from Oracle:
 * whenever (this creature) blocks or becomes blocked by (opposing creature), destroy (that creature) (at the end of combat)
 * whenever (this creature) deals (combat) damage to a creature, destroy (that creature) (at the end of combat)

Venom applies only on combat damage, while deathtouch applies to any damage dealt to a creature. Some creatures with venom only destroy certain colors or types of opposing creatures.

Creatures
Black
 * Abomination (green or white creature)
 * Cruel Deceiver
 * Deathgazer (nonblack creature)
 * Dread Specter (nonblack creature)
 * Dripping Dead
 * Evil Eye of Urborg
 * Gorgon Recluse (nonblack creature)
 * Grotesque Hybrid</c>
 * Infernal Medusa</c>
 * Mephitic Ooze</c>
 * Phage the Untouchable</c>
 * Plague Fiend</c>
 * Stinkweed Imp</c>
 * Toxin Sliver</c>
 * Zombie Boa</c> (creature of selected color)

Green
 * Cockatrice</c> (non-Wall creature)
 * Engulfing Slagwurm</c>
 * Lowland Basilisk</c>
 * Ohran Viper</c>
 * Serpentine Basilisk</c>
 * Simic Basilisk</c>
 * Sosuke, Son of Seshiro</c>
 * Stone-Tongue Basilisk</c>
 * <c>Sylvan Basilisk</c>
 * <c>Tangle Asp</c>
 * <c>Thicket Basilisk</c> (non-Wall creature)
 * <c>Venomous Dragonfly</c>

Multicolor
 * <c>Kjeldoran Frostbeast</c>
 * <c>Rock Basilisk</c> (non-Wall creature)
 * <c>Voracious Cobra</c>

Spells
White
 * <c>Infinite Authority</c> (creature with toughness 3 or less)

Green
 * <c>Venom</c> (non-Wall creature)
 * <c>Venomous Fangs</c>

Artifacts

 * <c>Acidic Dagger</c> (non-Wall creature)
 * <c>Dead-Iron Sledge</c> (Destroys both equipped creature and creatures blocked or blocked by equipped creature.)
 * <c>Wooden Stake</c> (Vampire)