BUR #23953 has been approved by @nonamethanks.
create alias dungeons_and_dragons -> dungeons_&_dragons
create implication dungeons_&_dragons:_tower_of_doom -> dungeons_&_dragons
create implication dungeons_&_dragons:_shadow_over_mystara -> dungeons_&_dragons
rename gith_(dungeons_and_dragons) -> gith_(dungeons_&_dragons)
rename tiamat_(dungeons_and_dragons) -> tiamat_(dungeons_&_dragons)
For whatever reason, the main tag of Dungeons & Dragons is still stuck with the commonly mistaken label "Dungeons and Dragons" (using "and" instead of "&") for over 15+ years now without anyone correcting it. So I think this should be corrected, since there are other installments tags that rendered the franchise name correctely.
Also included are implications of other D&D stuff into the main tags.