The bulk update request #231 is pending approval.

create implication toothless (162) -> how_to_train_your_dragon (141)
create implication night_fury (143) -> how_to_train_your_dragon (141)
create implication light_fury (38) -> how_to_train_your_dragon (141)
create implication nubless (33) -> how_to_train_your_dragon (141)

Reason: So many HTTYD posts not tagged with how_to_train_your_dragon, so I figure a bulk Implication will fix it.