Sling bullets of (foo) slaying are missiles that can be fired with a sling, and possess slaying powers against appropriate monster type. They have default stats of (+3, 2d3). (Foo) can be one of monster types - demons, humanoids, plants, insects, constructs, undead, giants, dragons. Each hit against the corresponding monster type will grant a critical hit (with added +100% base damage for using proper slaying weapon, thus making final critical multiplier in the range from 3x to 6x) They are specific missile type, thus cannot have magic pre- or suffixes.