Wyvern (Dungeons & Dragons) aggressive, and able to lash with a sting-equipped tail. This edition of the "D&D" game included its own version of the wyvern, in the "Dungeons & Dragons Expert Set" (1981 & 1983). The wyvern was also later featured in the "Dungeons & Dragons Game" set (1991), the "Dungeons & Dragons Rules Cyclopedia" (1991), and the "Classic Dungeons & Dragons Game" set (1994). The wyvern appears first in the "Monstrous Compendium" Volume One (1989), and are reprinted in the "Monstrous Manual" (1993). The Mercykiller wyrm, a relative of the wyvern for the Planescape campaign setting, appeared in "In the Cage: A
Star (heraldry) Register, vol 1 p 188), while the Ordinary of Arms produced by a late 19th century Lyon King of Arms 'modernizes' the original as "Az. three mullets arg. ...". In Canadian heraldry the usual term is "mullet", but there is also the occasional six-pointed "star" (e.g. in Vol. IV, at p. 274 and in online version of the Canadian Public Register), which is what others would blazon as a six-pointed "mullet". The United States Army Institute of Heraldry, the official heraldic authority in the United States, uses the term "mullet" in its blazons, but elsewhere, as in US government documents